Pesticide for preventing olethreutes leucaspis meyrick in litchi and preparing method thereof

Abstract

The invention relates to the technical field of agricultural chemicals, and discloses a pesticide for preventing olethreutes leucaspis meyrick in litchi and a preparing method thereof. The pesticide is prepared from, by weight, 15-30 parts of volatile oil of A. conyzoides, 9-19 parts of deltamethrin, 12-24 parts of extractive of Duranta repens 'Variegata', 15-25 parts of bergamot oil, 8-16 parts of Cnidium monnieri(L.)Cuss, 8-16 parts of parts of Welsh onion, 5-13 parts of Azadirachta Indica A.Juss tree blossoms, 42-56 parts of vegetable oil, 8-14 parts of cosolvents, and 6-13 parts of surfactant. The pesticide for preventing olethreutes leucaspis meyrick in litchi can effectively prevent the olethreutes leucaspis meyrick in litchi and can improve improve litchi yield. Besides, the residual period of the pesticide is only 8-10 days, therefore the pesticide is safe to people and livestock. The preparing method of pesticide for preventing olethreutes leucaspis meyrick in litchi is also provided by the invention. The pesticide for preventing olethreutes leucaspis meyrick in litchi has the advantages of reasonal concerted application of pesticides, high controlling effects on olethreutes leucaspis meyrick in litchi, short killing time, meanwhile the pesticide is free from pollution, sharply reduces the cardinal number of the population of the pests, and has huge superiority in preventing the olethreutes leucaspis meyrick in litchi.

Description

Technical field [0001] The invention relates to the technical field of pesticides, and in particular to a pesticide for preventing and controlling the lychee triangulum lychee and a preparation method thereof. Background technique [0002] Lychee (scientific name: Litchi chinensis Sonn. ) Sapindus family, litchi is an evergreen tree, about 10 meters high. The peel has scaly bumps, bright red and purple. To bright red when mature; the seeds are all wrapped in fleshy arils. Flowering in spring, fruiting in summer. When the pulp is fresh, it is translucent and creamy, delicious, but not resistant to storage. Distributed in the southwest, south and southeast of China, Guangdong and southern Fujian are the most cultivated. It is also cultivated in Southeast Asia, and introduced in Africa, America and Oceania. Lychee, banana, pineapple, and longan are known as the "Four Major Fruits in South China". Lychee is sweet, sour, and warm in nature. It enters the heart, spleen and liver ...

AI Technical Summary

Problems solved by technology

Most of the domestic pesticides for the control of Litchi triangular moths are traditional chemical pesticides. The use of these pesticides is often only considered from the control effect, and other issues including environmental pollution, use safety and drug resistance are difficult to take into account.

And the pesticide that specially controls litchi triangular moth and develops has not yet been reported

[0004] Although some results have been obtained in the current research on the pesticide components of botanical sources for the control of Litchi triangularis, most of them are used in combination with chemical agents. Although the control effect may be good, there are toxic and side effects on humans, animals and the environment. For example, in the periodical "Southern China Fruit Trees" in 2006, the 6th period, 9 kinds of insecticides have such problems in the control of Neotrichum triangularis. Although the patent uses chemical agents to achieve a good control effect in a short period of time, but The observation period of the test is short, and there are not enough relevant tests to support the safety and other issues

At present, there is no report on the use of invasive plants such as the volatile oil of red thistle as the main component of pesticides to control the litchi triangular moth.

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