RU2280984C1 - Method for protection of goat's-rue - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: claimed method includes treatment of feed crop goat'-rue seeding with aqueous solution of "decys" chemical preparation, 2.5 % concentrated emulsion in amount of 0.5 l/hectare on budding stage in morning at daily average temperature 12°C or more to control of bedbug, flea-beetle, sitona, clover weevil and to increase of seed yield of goat'-rue.

EFFECT: decreased population of insect pest and increased seed yield of goat'-rue.

1 tbl, 1 ex

Description

The invention relates to agriculture and can be used in seed production and fodder production of feed crops.

An important role in increasing production and improving the quality of agricultural products is the protection of plants from pests. Losses from pests, diseases reach 20-30% of the possible harvest. To combat pests of feed crops, various methods and tools are used. In the chemical method of protecting plants from pests, much attention is paid to reducing the environmental hazards of the drugs used, to establishing optimal terms and conditions for processing. One of the areas of the chemical method is the use of pesticides that are environmentally friendly for warm-blooded animals, humans and the environment [1].

Decis is a modern pyrethroid insecticide, unsurpassed in effectiveness and the broadest scope of application against pests in field cultivation, vegetable growing and gardening [2].

This drug does not adversely affect beneficial insects, including bees. When decis is used, there is no risk of disturbing soil balance, life processes in the soil, and does not pose a risk to aquatic fauna. The safety of decis is ensured by its following properties: the drug does not pass through the keratin layer of the skin of humans and animals and cannot enter their body this way, does not have a vapor effect, and there is practically no risk of intoxication through the respiratory tract.

Crops of forage crops, especially those belonging to the legume family, are significantly damaged by various pests. Eastern goatskin is damaged by a complex of harmful species - clover eater, striped, clover and moth nodule weevils, fleas and various bugs.

A known method of protecting Oriental goat's crops with decis with a flow rate of 0.3-0.5 l / ha in the stalking phase against nodule weevils [3].

The disadvantages of this method of crop protection include the fact that the effect of the drug is directed against one type of pest, and not a complex of pests.

The aim of the invention is to increase the yield of oriental goat seeds and protect the culture from a complex of insect pests.

The essence of the invention lies in the fact that the seed crops of the Eastern goatskin are treated with the preparation decis in a certain phase of the development of the culture and a certain consumption rate of the drug. Decis, 2.5% ke (emulsion concentrate) is first mixed with a small amount of water and mixed thoroughly, then the rest of the water is added. Decis contains deltamethrin as an active ingredient, which increases the activity of the insecticide. The drug is rapidly absorbed by the cell walls of plants and is not washed off even during heavy rains. Pests that receive a sublethal dose of the drug are not viable.

The effectiveness of this method of protection of Eastern goatskin is revealed on the basis of the biological effectiveness of the drug. Biological effectiveness was calculated by comparing pests in the treated and control plots on the 3rd, 10th, 15th, 25th days after treatment [4].

The reduction in the number of pests was determined by the formula

C - reduction in the number of pests,%.

And - the average number of insects in the control plots, copies.

In - the average number of insects in the treated area, spec.

The results of the experiments are shown in the table.

The biological effectiveness of decis on the eastern goatskin,%

Experience option Days of Accounting 3rd day 15 - day 25 - day Bed bugs Club. dol-ki Nibble. sem. Fleas Bed bugs Club. dol-ki Nibble. sem. Fleas Bed bugs Club. dol-ki Nibble. sem. Fleas The control, - - - - - - - - - - - - without mods Decis 77.3 62.0 70.0 75.0 93.5 89.3 94.3 97.5 100.0 90.5 94.0 97.5 0.5 l / ha

Decis showed high biological effectiveness against a complex of pests. When decis was used, the number of bugs, nodule weevils, clover seed eaters and fleas decreased on the 25th day after treatment by 100%, 90.5%, 94.0% and 97.5%, respectively.

Example. Eastern goat sowings are treated with decis-2.5% ke with a consumption rate of 0.5 l / ha. Decis is mixed with a small amount of water and mixed thoroughly, then the rest of the water is added. The working fluid is prepared immediately before use and it is used in the budding phase of the culture, in the morning at an average daily temperature above 12 ° C. Decis on the 3rd day after treatment reduces the number of bugs, nodule weevils, clover seed eaters, fleas by 77.3%, 62.0%, 70.0%, 75.0%, respectively; on the 15th day, the number of pests decreases by 93.5%, 89.3%, 94.3%, 97.5%, respectively. The drug destroys insect pests and contributes to an increase in seed yield.

The invention improves seed productivity by 42-48%.

Information sources

1. Pavlov I.F. Protection of field crops from pests. - M., 1987. - 256 p.

2. Patent No. 893121, A 01 N 53/00. Insecticaricidal agent / R. Fuchs, G. Hoffmann and others. Claim 24.09.79; publ. 23.12.81. - Bull.№47.

3. Karavyansky N.S. Protection of forage crops / Sb.tr. Issue 47. - M. - 1991. - S. 73-83.

4.Vasilieva T.V. Efficiency of bitoxibacillin and decis against pests of Eastern goatskin and forage sorrel // Promising areas of research by scientists. Sat scientific Issue 1. - Vologda, 1999.- P.86-87.

Claims (1)

A method of protecting Eastern goatskin from pests, which provides for the processing of crops with an aqueous solution of a chemical preparation - decis, 2.5% ke in a certain phase of the development of culture and with a certain rate of consumption of the drug, characterized in that the spraying of crops is carried out in the phase of budding of the culture with a flow rate of 0.5 l / ha in the morning at an average daily temperature above 12 ° C.