Diaphania indica preventing and controlling agent for organic vegetables and use method of preventing and controlling agent

Abstract

The invention discloses a diaphania indica preventing and controlling agent for organic vegetables and a use method of the preventing and controlling agent. The preventing and controlling agent is prepared through compatibility and soaking of fresh stems and leaves of lepidium apetalum, fresh stalks of tobacco, fresh herb of tripterygium wilfordii and human urine, and the mass ratio of the fresh stems and leaves of lepidium apetalum to the fresh stalks of tobacco to the fresh herb of tripterygium wilfordii to the human urine is (1.0-2.0):(1.5-2.5):(2.0-3.0):(4.5-7.5), preferably 1.5:2.0:2.5:6.0, wherein the fresh stems and leaves of lepidium apetalum, the fresh stalks of tobacco and the fresh herb of tripterygium wilfordii are calculated according to fresh weight, and the soaking medium human urine is calculated according to the mass of the pure urine stored for 1-30 days. The raw materials are uniformly mixed, soaking is carried out with a cover for 10-20 days, and then filtering is carried out by using 4-layer gauze for 2-3 times, wherein the filtrate is a stock solution of the preventing and controlling agent. The application is carried out by using a two-time solution of the stock solution according to a usage amount of 30-40 kg / 667m<2>, diaphania indica larvae of 3 instars or before can be rapidly killed, nutrients such as nitrogen and the like can be supplemented, and recovery of injured plants can be accelerated. The compatibility agent provided by the invention is convenient in use, simple in operation, low in cost and remarkable in preventing and controlling effectin production.

Description

technical field [0001] The invention belongs to the development and application of new agricultural practical technologies; the invention relates to a method for the development, production and application of an organic vegetable melon borer control agent. Background technique [0002] melon borer ( Diaphania indica Saunders) is an insect of the Lepidoptera Boreridae. It is one of the main pests on loofah, wax gourd, bitter gourd, cucumber, pumpkin and other crops. It mainly harms various melons of Cucurbitaceae and vegetables such as tomato and eggplant. Melon borer adults have a body length of 11 mm, black head and chest, white abdomen, and yellow-brown hair tufts at the ends of the first, seventh, and eighth segments. The front and hind wings are white and transparent, slightly purple, the front and outer edges of the forewings, and the outer edges of the hind wings are black and broad. Eggs are flat, oval, light yellow, with reticulate surface. The body length of the...

AI Technical Summary

Problems solved by technology

Although chemical control is relatively thorough, it is highly toxic and has serious residual hazards, so it is strictly prohibited to be used in organic vegetable production.