US1416526A - Insecticide - Google Patents

Description

eater entice.

MAX LEQNA TfiWER, 0F MIDDLEIPORT, NEW Y0, ASSIGNOR '1'0 NIAGARA 1". ('30., OEDLWORT, NEW YORK, A. 00

ORATION or new YORK.

msncrrcrnn No Drawing.

To all whom it may concern:

Be it known that I, MAX L. TownR, a citizen of the United States, and a resident of Middleport, in the county of Niagara and State of New York, have invented anew and useful Insecticide, of which the followin is a full, clear, and exact description.

This invention relates to insecticides and has for an object to provide an improved compound especially elficacious for. the destruction of sucking insects, as for instance aphis pear psylla and red bug.

A further object is to provide an insecticide which may be a dust mixture for certain insects,'or may contain an ingredient which is a stomach poison for chewing 1n sects.

In producing the compound the percentage of each ingredient may be varied to quite a large extent so long as enough plaster of Paris is introduced to combine with the Water of the nicotine solution.

Briefly the composition consists of a nicotine compound in the form of a dust produced by mixing a strong nicotine solution with an inert powder or .filler and a dehydrating agent. Preferably the mass or base in which to provide or suspend the nicotine compound consists of finely ground sulphur or sublimed sulphur because 1t has a decided fun icidal value. The dehydratingagent is pre erably plaster of Paris because of its cheapness and is a ready combination with the nicotine solution. The mass is made light and flufi'y large volume per unit weight by means of a filler, which may be a number of difierent substances, as for instance wood flour, talc, tobacco dust, or other li ht flufi'y powder. The tobacco dust is pregerable becauseit is very light and fluffy, and also because it contalns a small percentage ofnicotine and this merely adds to the nicotine contents of the solution, which is de.-'

hydrated by means of the plaster of Paris. A forty per cent solution of nicotine sulphate is preferable as a source of the nicotine contents of the mixture because of its high initial nicotine content, and because the sulphate of nicotine is more stable than the alkaloid or any'other of its common salts.

Where the compound is to'be used in kill ing chewin insects, as for instance the larva of the co 1 moth, a suitable internal poison is adde,:as for instance calcium ar senate.

' Specification of Letters Patent. Patenteqfl M y 16 192% Application filed September 15, .1919. Serial No. 323,772. v i

The ingredients-as recited may have the proportions varied widely While presenting an extremely fluify dusty mixture for the purpose deslred.

The following formulas are typical compoulds, though other proportions may be use solution.

In compoundin or mixing any particular batch above in lcated, or any variation thereof, the parts are intermingled and ground by an suitable means, as for instance by a ba 1 mill, first grinding together the sulphur, tobacco dust, laster of Paris and in formulas B and C, t e arsenate, then adding the nicotine sul hate solution and finally grinding the mixture a suflicient length of time to produce a fine, dry, dusty mass;

What I claim is:

1. An insecticidecomprising a nicotine salt solution, a dehydratlng agent, fine sulphur acting as a base in which the nicotine salts and the dehydrating agent are suspended and an arsenate.

2. An insecticide comprisin in substan-' tially the proportions given, a orty per cent nicotine sulphate solution, laster of Paris, tobacco dust, finely divide sulphur and an arsenate.

,3. An insecticide in the form of dust comprising a nicotine sulphate solution, finely divided sulphur, plaster of Paris, sufiicient to dehydrate the nicotine sulphate solution and lead arsenate.

4. An insecticide in the form of powder comprising a substantially forty per cent 10 sulphur sixty seven and one half parts.

6. An insecticide in the form of dust comprising a nicotine sulphate solution, finely divided sulphur, plaster of Paris sufficient to dehydrate said solution, and an arsenate.

7. An insecticide in the form of dust comprising a substantially forty per cent nicotine sulphate solution, a dehydrating agent suflicient to dehydrate said solution, a metallic arsenate, tobacco dust and finely divided sulphur.

MAX LEONARD TOWER.