CS240518B1 - Insecticidal composition based on zeolites - Google Patents

Abstract

The essence of the solution is the use of zeolites with a composition of 72.5% SiO2, 13.6% Al2O3, 2.2% CaO, 1.9% K2O, 0.6% MgO, 0.6% Na2O, 0.18% TiO2, 0.02% P2O5, 6.3% H2O with a particle size of 0.1 to 0.31 mm with an active ingredient content of clinoptilolite of 50 to 60% and an exchange capacity of 0.6 to 0.7 mol/kg as an insecticidal agent. The use concerns the protection of feed grains, especially against Coleoptera. In the described experiments, 4 to 30 g of zeolite are added per 1 kilogram of wheat at a moisture content of 13.4 to 18 per cent. The tests were carried out on individuals of the species Sitophilus granarius. The effect was evident after only 4 days, with 100% mortality observed after 9 to 26 days.

Description

The invention relates to insecticidal zeolites. Zeolites are characterized as crystalline aluminosilicates containing reversibly bound water. They serve as cation exchange resins. These properties allow them to be used as a feed additive, to enhance under, better use fertilizer and to reduce acidity under (Cicišvili GV, Natural Zeolites, Occurence, Properties, Use. Oxford - New York 1978). NH ₃ , CO ₂ , SO ₂ and H ₂ S, which can be used in domestic animal husbandry to improve the environment in animal housing (Bartko P., Vrzgula D., Prosbova M., Blazovsky J., Kozac J., Ocenáš D. Final report of the research task University of Veterinary, Košice 1981 j.

There are known cases of use of zeolites and pesticide carriers (Yoshinaga E. Organophosphate-containing agricultural and horticultural granule formations. US Patent 3,708,573, 1973). It is also used as an additive to cement (Čeliščev N. F. Izpolzovanje natural ceolites. Vol. S. Ch. Nauki 1978).

So far, the insecticidal properties of zeolites are not known. In practice, nowadays, either fumigants or contact insecticides - environmentally hazardous preparations - or inert gases, which require an economically costly device for hermetically storing warehouses, are largely used against stock pests.

It has now been found that zeolites have an insecticidal effect on adult individuals of storage pests of the order Coleoptera and do not impose on the developmental stages of these insects. Doses of 2-3% are more effective than previously used chemical agents.

The invention therefore provides a new use of zeolites of 72.5 SiO ₂ , 13.6% Al ₂ O ₃ , 2.2% CaO, 1.9% K, O, 0.6% MgO, 0.6% Na ₂ 0, 0.18% _TiO2, 0.02% P ₂ .O _5, and 6.3% _H2O with a particle size 0.1 to 0.31 mm, o clinoptilolite content of 50 to 60% of the exchange capacity 0.6 to 0.7 mol / kg as an insecticide for the protection of feed cereals against storage pests, in particular Coleoptera.

Zeolites as non-toxic minerals do not have an adverse impact on the environment. Their application according to the present disclosure is economically advantageous, requiring only mixing the stored grain with a dose of zeolite. An automatic dispenser can also be used for this purpose.

Zeolites are largely incorporated into compound feed, usually in a 3% amount to better utilize feed per unit weight gain. The proposal according to the invention requires the application of zeolites to the feed grain either with the aim of preventive protection against storage pests or by direct repressive intervention.

The use of zeolites according to the invention in integrated methods of combating storage pests reduces the use of expensive, hazardous insecticidal products.

The following examples illustrate but do not limit the properties of zeolite as an insecticidal composition of the invention.

Example 1

Characterization of zeolite used.

The zeolite sample originated from the Nižný Hrabovec deposit. It was processed by heat treatment and milling in Ceramics Košice. According to our analyzes, it had a cation-exchange capacity of 738.9 meq.kg ^-1 , the content of the active) component of clonipilo-lite 56.92%. The wet grit sieve grit showed a residue at 0.315 mm sieve of 0.96% and 0.1 mm sieve of 4.92%. The water content of the zeolite used was 4.51%, the dry matter content was 95.49%, the ash content was 92.36%. The pH of the aqueous extract was 8.02. Zeolite tuffite contained: 72.5% SiO ₂ , 13.6% AUO ₃ , 2.2% CaO, 1.9% K ₂ O, 0.6% Na, O, 0.18% TiO 2, 0.02 % P ₂ O ₅ , 6.3% H ₂ O.

Example 2

Work methodology

1 kg of wheat (moisture content 13.4-18%) was treated with zeolites at a dose of 4, 6, 14, 20, 30 g of zeolite per kg of wheat. in glass bottles to which 50 were added or 100 Sitophilus granarius, the bottles were sealed with a breathable canine and placed at a temperature of 22-30 ° C and a relative humidity of 40-60%. Even after 100% mortality of Sitophilus granarius, the treated cereals were checked for development of the next generation, a control experiment was selected for each series of experiments, and samples 1-5 were used for the experiments.

Sample no. 1 4 g zeolite / kg wheat 15% wet.

Sample no. 2 6 g zeolite / kg wheat 18% wet.

Sample no. 3 14 g zeolite / kg wheat 14.8 washes. wet.

Sample no. 4 20 g of cereal / kg of wheat 13.4 pere. wet.

Sample no. 5 30 g zeolite / kg wheat 13.5 washes. wet.

The insecticidal activity is shown in the graph of FIG. 1 and Table I.

Claims (1)

240518 PREDMET Use of zeolites 72,5% SiO2,13,6 O / o Al2O3, 2,2% CaO, 1,9%: K2O, 0,6% MgO, 0,6% Na2O, 0,18% TiO2 , 0.02% P2O5, 6.3% H2O with a particle size of 0.1-0.31 mm, with an active ingredient of the clinically detectable lollus 50 to 60% with an exchange capacity of 0.6 to 0.7 mol / kg as insecticidal, a composition for protecting feed grains by anti-storage pests especially against Coleoptegra. 1 sheet of drawings 1