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WO2020092641A1 - Lutte contre la maladie des plantes atteintes de la candidatus liberibacter par application de glyphosate - Google Patents

Lutte contre la maladie des plantes atteintes de la candidatus liberibacter par application de glyphosate Download PDF

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Publication number
WO2020092641A1
WO2020092641A1 PCT/US2019/058956 US2019058956W WO2020092641A1 WO 2020092641 A1 WO2020092641 A1 WO 2020092641A1 US 2019058956 W US2019058956 W US 2019058956W WO 2020092641 A1 WO2020092641 A1 WO 2020092641A1
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WIPO (PCT)
Prior art keywords
citrus
plant
glyphosate
disease
glyphosphate
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Ceased
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PCT/US2019/058956
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English (en)
Inventor
Eric W. Triplett
Joseph R. PETRONE
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University of Florida
University of Florida Research Foundation Inc
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University of Florida
University of Florida Research Foundation Inc
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Publication of WO2020092641A1 publication Critical patent/WO2020092641A1/fr
Anticipated expiration legal-status Critical
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
    • A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
    • A01N57/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing acyclic or cycloaliphatic radicals
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F11/00—Other organic fertilisers
    • C05F11/08—Organic fertilisers containing added bacterial cultures, mycelia or the like
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants

Definitions

  • This invention relates to a method for treatment and prophylaxis of Huanglongbing disease and diseases caused by Candidatus Liberibacter species in plants and in particular citrus plants.
  • Glyphosate N-(phosphonomethyl)glycine
  • Glyphosate is a nonselective herbicide known to affect over 150 species of weeds, including mono and dicotyledonous plants of annual or perennial cycles. It is used worldwide to control weeds in many crops and is usually applied three or more times per year, however the manufacturer’s recommendations specify not to contact the green parts of non-target plants with the sprayed composition in order to avoid toxicity to those plants.
  • Non-target injury fro herbicide drift is a concern, as it is for any other herbicide. Glyphosate drift can cause permanent damage in some crops.
  • the herbicide glyphosate inhibits the enzyme 5-enolpyruvoylshikimate-3-phosphate synthase (EPSPs, EC 2.5.1.19) and therefore affects the shikimic acid pathway in which the aromatic amino acids phenylalanine, tyrosine and tryptophan are synthesized. Glyphosate causes growth retardation, chlorosis and necrosis, especially in young plant tissues.
  • EPPs enzyme 5-enolpyruvoylshikimate-3-phosphate synthase
  • HLB Huanglongbing disease
  • citrus greening disease yellow shoot, or yellow dragon
  • HLB is a major bacterial disease of citrus crops and can be found in Asia, in the Americas and in Africa. It has been spreading worldwide, resulting in economic loss. HLB currently is the most economically devastating disease of citrus worldwide and no established cure is available. All commercial citrus varieties currently available are susceptible to HLB and the citrus industries in affected areas have suffered a decline in both production and profit. In Florida, HLB is now present in all commercial citrus -producing counties and is negatively affecting the $9 billion citrus industry at a rapid pace. It was estimated that HLB has played a key role in the loss of about 100,000 citrus acres since 2007 in Florida and has cost Florida’s economy approximately $3.6 billion in lost revenues since 2006 (Gottwald, 2010;
  • Citrus HLB is associated with a phloem-limited fastidious a-proteobacterium belonging to the‘Candidatus’ genus Liberibacter, formerly known as Liberobacter.
  • three species of‘ Ca . Liberibacter’ have been identified to cause HLB disease: ‘ Ca . L. asiaticus’ (Las), ‘ Ca . L. africanus’, and‘ Ca . L. americanus’ (Gottwald, 2010). These bacteria have not been cultivated in pure culture.
  • the HLB pathogen is mainly spread by the insect (psyllid) vector Diaphorina citri in the field.
  • psyllid insect vector
  • Las propagates in the phloem of the host plants, resulting in die-back, small leaves, yellow shoots, blotchy mottles on leaves, corky veins, malformed and discolored fruit, aborted seed, premature fruit drop, root loss, and eventually tree death (Bove, 2006; Gottwald et ah, 2007; Wang and Trivedi, 2013).
  • the life span for the profitable productivity of infected citrus trees is dramatically shortened as the disease severity increases and the yield is significantly reduced while the tree is still alive (Gottwald et ah, 2007).
  • the understanding of virulence mechanism of the bacterial pathogen is limited, due to the difficulty in culturing Las.
  • Particularly sensitive citrus includes Citrus halimii,‘Nules’ clementine mandarin, Valencia sweet orange,‘Madam Vinous’ sweet orange,‘Duncan’ grapefruit,‘Ruby’ red grapefruit, and‘Minneola’ tangelo, however, any Citrus species is vulnerable to HLB.
  • some related plants in the genus Rutaceae, and other plants may become infected with Ca. Liberibacter species. Those of skill in the art are able to test for infection by Ca.
  • HLB-free citrus seedlings destruction of infected trees
  • insecticides such as aldicarb (Temik®) or imidacloprid (Admire®).
  • These insecticides are aimed at controlling psyllids, the insect vector for the disease, although it is not known if insecticides have a direct effect on the spread of HLB.
  • These insecticide treatments do not reduce disease in trees already infected, in any case.
  • An integrated control program has been recommended for HLB in commercial orchards by the United Nations Development Program, Food and Agriculture Organization (UNDP, FAO) Southeastern Asian citrus rehabilitation project (Aubert,l990).
  • the program highlights controlling psyllid vectors with insecticides, reducing inoculum through removal of HLB- symptomatic trees, propagating and using pathogen-free budwood and nursery trees.
  • foliar nutrition programs coupled with vector control are often used to slow down the spread of HLB and reduce devastating effects of the disease (Gottwald, 2010). These control practices have shown limited effect for preventing the further spread of HLB.
  • the present invention provides a method for treatment and prophylaxis of HLB in citrus.
  • the invention primarily relates to a method of treatment or prophylaxis of huanglongbing disease of citrus, comprising administering to a citrus plant in need thereof a composition containing glyphosate.
  • the inventive methods also can be used to treat Ca. Liberibacter diseases in other plants, such as glyphosate resistant tomato and potato.
  • FIG 1 is a bar graph showing live cell (Liberibacter crescens) fluorescence intensity for the indicated glyphosate concentrations in the indicated media in culture.
  • FIG 2 is a bar graph showing the percentage of Liberibacter crescens viable after 3 days incubation, normalized to control, in the indicated media in culture.
  • FIG 3 is a bar graph showing live cell (Liberibacter crescens) fluorescence intensity for the indicated glyphosate concentrations in the indicated media in culture.
  • FIG 4 is a bar graph showing the percentage of Liberibacter crescens viable after 3 days incubation, normalized to control, in the indicated media in culture.
  • cinnamon plant refers to a mature plant, seed, cutting, embryo, seedling, and/or sapling, and the like of any citrus variety.
  • Citrirus refers to any plant of the genus Citrus, family Rutaceae, and includes Citrus maxima (Pomelo), Citrus medica (Citron), Citrus micrantha (Papeda), Citrus reticulata (Mandarin orange), Citrus trifolata (trifoliate orange), Citrus japonica (kumquat), Citrus australasica (Australian Finger Lime), Citrus australis (Australian Round lime), Citrus glauca (Australian Desert Lime), Citrus garrawayae (Mount White Lime), Citrus gracilis (Kakadu Lime or Humpty Doo Lime), Citrus inodora (Russel River Lime), Citrus warburgiana (New Guinea Wild Lime), Citrus wintersii (Brown River Finger Lime), Citrus halimii ( limau kadangsa, limau kedut kera )
  • Hybrids also are included in this definition, for example Citrus x aurantiifolia (Key lime), Citrus x aurantium (Bitter orange), Citrus x latifolia (Persian lime), Citrus x limon (Lemon), Citrus x limonia (Rangpur), Citrus x paradisi (Grapefruit), Citrus x sinensis (Sweet orange), Citrus x tangerina (Tangerine), Poncirus trifoliata x C.
  • Citrus known by their common names include, Imperial lemon, tangelo, orangelo, tangor, kinnow, kiyomi, Minneola tangelo, oroblanco, sweet orange, ugli, Buddha’s hand, citron, lemon, orange, bergamot orange, bitter orange, blood orange, calamondin, clementine, grapefruit, Meyer lemon, Rangpur, tangerine, and yuzu, and these also are included in the definition of citrus or Citrus.
  • Huanglongbing disease is a disease of plants caused by microorganisms of the Candidatus genus Liberibacter, such as L. asiaticus, L. africanus, and L. americanus. This disease, for example, can be found in citrus plants, or other plants in the genus Rutaceae. Symptoms of Huanglongbing disease include one or more of yellow shoots and mottling of the plant leaves, occasionally with thickening of the leaves, reduced fruit size, fruit greening, premature dropping of fruit from the plant, low fruit soluble acid content, fruit with a bitter or salty taste, or death of the plant.
  • treatment indicates any process or method which cures, diminishes, ameliorates, or slows the progress of the disease or disease symptoms.
  • treatment includes reducing bacterial titer in plant tissues or appearance of disease symptoms relative to controls which have not undergone treatment.
  • a vehicle compatible with the plant to be treated i.e., a botanically compatible vehicle or carrier
  • Any application means can be used, however preferred application is foliar spraying.
  • Other methods include application to the soil surrounding the plant, by injection, soaking or spraying, so that the applied glyphosate compound preferably comes into contact with the
  • plant in need thereof means any plant which is healthy or which has been diagnosed with a plant disease or symptoms thereof, or which is susceptible to a plant disease, or may be exposed to a plant disease or carrier thereof.
  • the term“population of plants,” as used herein, refers to a group of plants, all of the same species or all citrus plants, that inhabit a particular area at the same time. Therefore, the plants in a nursery, a grove, a farm, and the like are considered a population.
  • the term“effective amount” or“therapeutically effective amount,” as used herein, with respect to treatment means any amount of the glyphosate compound or a composition containing this compound, which reduces the symptoms of HLB disease in a citrus plant or population of citrus plants, reduces the amount of pathogenic bacteria in a citrus plant or population of citrus plants, improves health, growth or productivity of the plant, or which reduces the effects, titer or symptoms of the plant disease, or prevents worsening of the plant disease, symptoms or infection of the plant.
  • This term includes an amount effective to increase seed germination of a plant or a plant population, to increase the speed of seed germination of a plant or a plant population, to increase growth rates of a plant or a plant population, to increase crop yield of a plant or plant population, increase crop quality in a plant or plant population, reduce the plant pathogen titer, to inhibit plant pathogen growth, to reduce the percent of infected plants in a plant population, to reduce the percent of plants showing disease symptoms in a plant or plant population, to reduce the disease symptom severity rating or damage rating of a plant or plant population, to reduce average pathogen population or titer in a plant or plant population by about 2%, about 5%, about 10%, about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 75%, about 80%, about 85%, about 90%, or more, compared to plants or a plant population not treated with the active ingredient.
  • the term“treating,”“treatment,” and all their cognates, as used herein, refers to any application or administration to a plant, the soil surrounding the plant, the water applied to the plant, or the hydroponic system in which the plant is grown, which is intended to improve the health, growth or productivity of a plant, particularly a crop plant, that is affected by HLB or symptoms of HLB.
  • a treatment intended to increase the health or growth or a crop plant, increase crop yield of a plant or population of plants is contemplated as part of this definition, as well as treatment intended to improve disease symptoms or pathogen titer in the plant.
  • reduction of disease symptoms refers to a measurable decrease in the number or severity of disease symptoms.
  • the term“effective amount” or“therapeutically effective amount,” as used herein, with respect to prophylaxis, means any amount of the glyphosate compound or a composition containing this compound, which reduces the likelihood of HLB disease in a citrus plant or a population of citrus plants, reduces the likelihood of any HLB disease symptom to a citrus plant or a population of citrus plants, reduces the spread of the disease to a citrus plant or a population of citrus plants.
  • This term includes an amount effective to reduce the chance of HLB disease infection or to produce improved resistance to disease in a citrus plant or a population of citrus plants by about 2%, about 5%, about 10%, about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 75%, about 80%, about 85%, about 90%, or more, compared to plants or a plant population not treated with the active ingredient.
  • prophylactic refers to any application or administration to a plant, the soil surrounding the plant, the water applied to the plant, or the hydroponic system in which the plant is grown, which is intended to improve the health, growth or productivity of a plant, particularly a crop plant, that can be affected by HLB or symptoms of HLB, including citrus plants that are not currently affected by HLB.
  • a prophylactic application intended to increase the health or growth or a crop plant, increase crop yield of a plant or population of plants, or intended to prevent or decrease the likelihood of infection with HLB disease is contemplated as part of this definition.
  • the term“improved resistance to disease,” as used herein, refers to an increase of plant defense in a healthy plant or a decrease in disease severity in a plant or in a population of plants, or in the number of diseased plants or plants exhibiting plant disease symptoms in a plant population.
  • plant disease symptoms refers to any symptom of disease, including the detectable presence of a known plant pathogen, or the presence of rot, mottling, galls, discoloration such as yellowing or browning, fruit greening, stunted growth, plant death, cellular death, cell wall breakdown, and/or the presence of spots, lesions, dieback, wilting, dwarfing, Witch’s broom and/or knots.
  • “botanically acceptable carrier/vehicle” or“botanically compatible carrier/vehicle,” as used herein, refers to any non-naturally occurring vehicle, in liquid, solid or gaseous form which is compatible with use on a living plant and is convenient to contain a substance or substances for application of the substance or substances to the plant, its leaves or root system, its seeds, the soil surrounding the plant, or for injection into the trunk, or any known method of application of a compound to a living plant, preferably a crop plant, for example a citrus tree, citrus seedling, and the like.
  • Useful vehicles can include any known in the art, for example liquid vehicles, including aqueous vehicles, such as water, solid vehicles such as powders, granules or dusts, or gaseous vehicles such as air or vapor. Any vehicle which can be used with known devices for soaking, drenching, injecting into the soil or the plant, spraying, dusting, or any known method for applying a compound to a plant, is contemplated for use with embodiments of the invention.
  • Typical carriers and vehicles contain inert ingredients such as fillers, bulking agents, buffers, preservatives, anti-caking agents, pH modifiers, surfactants, soil wetting agents, adjuvants, and the like. Suitable carriers and vehicles within this definition also can contain additional active ingredients such as plant defense inducer compounds, nutritional elements, fertilizers, pesticides, and the like.
  • Glyphosate N-(phosphonomethyl)glycine
  • ROUNDUP Montanso®
  • ROUNDUP and other glyphosate herbicides generally are used for destruction of weeds by application to genetically engineered crops with altered DNA that allows them to withstand the glyphosate herbicide. These crops are commonly referred to as “ROUNDUP Ready.” Any glyphosate compound or composition containing glyphosate is contemplated for use with the invention.
  • aspects of the invention pertain to a method of treatment and/or prophylaxis of HLB disease using application(s) of glyphosate in plants which either have or are subject to infection with HLB disease and other diseases related to Ca. Liberibacter.
  • the glyphosate treatments could also be used to treat other plant diseases caused by Ca. Liberibacter, such as diseases of tomato and potato which are caused by Ca. Liberibacter species.
  • glyphosate-resistant or ROUNDUP ReadyTM plants would be necessary in using the inventive methods.
  • ROUNDUP or other glyphosate formulations can be used at low concentrations (about 0.5mM to about 50mM to kill these bacteria without killing citrus, which is counterintuitive and runs against the common wisdom, which indicates that one should avoid contacting glyphosate with crop plants, particularly those which are not ROUNDUP ReadyTM. At these very low concentrations, glyphosate is able to kill the disease bacteria while sparing the plant.
  • the citrus plant is healthy.
  • the citrus plant has been previous modified to be resistant to glyphosphate.
  • the citrus plant is affected by HLB disease or HLB disease symptoms.
  • the product to be applied to plants for control of citrus greening disease preferably is any glyphosate formulation suitable as a foliar spray for citrus.
  • the glyphosate dose used for application to the plants preferably is low enough to be well-tolerated by citrus but high enough to enter phloem in a high enough amount to kill the Ca. Liberibacter pathogen.
  • Such lower concentration glyphosate formulations also can be used on glyphosate-resistant lines of tomato and potato as a treatment for or for prophylaxis of diseases caused by Ca. Liberibacter solanacearum in these plants.
  • Persons of skill are able to determine doses of glyphosate to be applied to crop plants, whether glyphosate resistant or not.
  • the citrus for use with the invention advantageously can be selected from
  • Citrus maxima Piero
  • Citron Citrus medica
  • Citrus glauca (Australian Desert Lime), Citrus garrawayae (Mount White Lime),
  • Citrus gracilis (Kakadu Lime or Humpty Doo Lime), Citrus inodora (Russel River
  • Citrus halimii ( limau kadangsa, limau kedut kero) Citrus
  • Glyphosate -containing compositions preferably include a botanically acceptable vehicle or carrier, preferably a liquid aqueous vehicle or other carrier such as water, and glyphosate.
  • the composition has a concentration of 0.5mM to 850.5mM glyphosate, and more typically about 35-50 mM.
  • the composition contains 42.5 mM glyphosate.
  • the composition may be formulated as an emulsifiable concentrate(s), suspension concenirate(s), directly sprayable or dilutable solution(s), coatable pastes s ). dilute emulsion(s), wettable powder(s), soluble powder(s), dispersible powder(s), dust(s), granule(s) or capsule(s), or any known or available composition.
  • the glyphosate When applying the glyphosate composition to citrus plants for control, treatment or prophylaxis of HLB disease, the glyphosate is provided to the plant at a concentration of about 0.5niM to about lOOmM, and in a specific embodiment at about 35-50 mM.
  • the composition optionally also can include a botanic ally acceptable carrier that contains or is blended with additional active ingredients and/or additional inert ingredients. Active ingredients which can be included in the carrier formulation can be selected from any combination of pesticides, herbicides, plant nutritional compositions such as fertilizers and the like. Plant inducer compounds such as salicylic acid or b-aminobutyric acid (BABA) also can he included in the compositions. Additional active ingredients can be administered simultaneously with the giyphosate compositions described here, in the same composition, or in separate compositions, or can be administered sequentially.
  • BABA b-aminobutyric acid
  • Inert ingredients which can be included in the carrier formulation can be selected from any compounds to aid in the physical or chemical properties of the composition.
  • Such inert ingredients can be selected from buffers, salts, ions bulking agents, colorants, pigments, dyes, fillers, wetting agents, dispersants, emulsifiers, penetrants, preservatives, antifreezes, evaporation inhibitors, nutrient compounds, anti-caking agents, defoamers, antioxidants, and the like.
  • Methods of administration to plants include, by way of non-limiting example, application to any part of the plant, by inclusion in irrigation water, by injection to the plant or to the soil surrounding the plant, or by exposure of the root system to aqueous solutions containing the compounds, by use in hydroponic or aeroponic systems, by seed treatment, by exposure of cuttings of citrus plants used for grafting to aqueous solutions containing the compounds, by application to the roots, stems or leaves, by application to the plant interior, or any part of the plant to be treated. Any means known to those of skill in the art is contemplated
  • any plant in need in the context of this invention, includes any plant susceptible to or infected with HLB, in the judgement of the person of skill in this and related arts.
  • Application to hydroponic or culture media preferably is performed as follows, however any method known in the art can be used.
  • a solution or vehicle containing glyphosate at a concentration of about 42.5 mM to about 850.5 mM can be added into the hydroponic or culture media at final concentrations suitable for plant growth and development.
  • concentrations, and volumes may change depending on the plant, and can be determined by one of skill in the art.
  • Seeds may be treated or dressed prior to planting, by soaking the seeds in a solution containing glyphosate at a concentration of about 42.5 mM to about 850.5 mM over a period of minutes or hours.
  • Application to the stems or leaves of the plant preferably is performed by spraying or other direct application to the desired area of the plant, however any method known in the art can be used.
  • a solution or vehicle containing glyphosate at a concentration of about 0.5mM to about 42.5 mM may be applied with a sprayer to the stems or leaves until runoff to ensure complete coverage, and repeat three or four times in a growing season.
  • concentrations, volumes and repeat treatments may change depending on the plant and can be determined by one of skill in the art.
  • FIGs. 1-4 present data showing that glyphosate is able to significantly inhibit
  • M17 phloem medium a defined medium that contains the same concentrations of aromatic amino acids found in citrus phloem.
  • the M17 medium lacks those amino acids entirely.
  • M15 and HiG media have high concentrations of the aromatic amino acids.
  • the initial pH of the media was 5.92 in each case and was maintained in the controls after 4 days incubation.

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  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Engineering & Computer Science (AREA)
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  • Wood Science & Technology (AREA)
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Abstract

L'invention concerne des procédés de traitement de plantes infectées par la maladie du dragon jaune ou de prophylaxie contre la maladie du dragon jaune. Les procédés selon l'invention impliquent l'administration de concentrations contrôlées de glyphosphate suffisantes pour éliminer la Candidatus Liberibacter sans affecter la santé de la plante.
PCT/US2019/058956 2018-10-30 2019-10-30 Lutte contre la maladie des plantes atteintes de la candidatus liberibacter par application de glyphosate Ceased WO2020092641A1 (fr)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101589725A (zh) * 2009-07-02 2009-12-02 广西壮族自治区农业科学院植物保护研究所 一种柑桔黄龙病扑灭剂
US20150126423A1 (en) * 2012-05-01 2015-05-07 Monsanto Technology Llc Method of cleaning residual pesticide from an agricultural vessel
US20170044560A1 (en) * 2014-05-04 2017-02-16 Forrest Innovations Ltd. Compositions and methods for reducing pathogen-induced citrus greening

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101589725A (zh) * 2009-07-02 2009-12-02 广西壮族自治区农业科学院植物保护研究所 一种柑桔黄龙病扑灭剂
US20150126423A1 (en) * 2012-05-01 2015-05-07 Monsanto Technology Llc Method of cleaning residual pesticide from an agricultural vessel
US20170044560A1 (en) * 2014-05-04 2017-02-16 Forrest Innovations Ltd. Compositions and methods for reducing pathogen-induced citrus greening

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