Method for improving chilo suppressalis control effect by combining trap crop with sex attractant

Abstract

The invention provides a method for improving chilo suppressalis control effect by coordinated usage of trap crops and a sex attractant. The method comprises: planting trap crops in lines on ridges of a rice field or a zizania aquatica field, clump distance of the trap crops being 3-4 m, trapping chilo suppressalis female moths to lay eggs on the trap crops; putting the sex attractant in the ice field or the zizania aquatica field, the sex attractant being put in a trap device to trap male insects; parallel distance between the chilo suppressalis sex attractant and the trap crop being 20-25 m. The trap crops and the sex attractant are used in a combined manner in a specific method. The method substantially improves trapping effect of vetiver grass on chilo suppressalis female moths and trapping effect of the sex attractant on the chilo suppressalis male insects, reduces population quantity of chilo suppressalis adults in the rice field (zizania aquatica field) and field population quantity of next generation larva, and improves seedling protection effect on rice (zizania aquatica).

Description

technical field [0001] The invention relates to the technical field of ecological control of agricultural pests, in particular to a method for coordinated control of stem borers by using lure plants and sex attractants. In particular, the invention relates to a method for controlling the rice (zizania) pest, the rice stem borer, by using the insect-attracting plant vetiver and the sex-attractant of the rice stem borer in coordinated application. Background technique [0002] In recent years, due to the adjustment of planting structure, change of farming system, variety replacement, climate change and increase of pesticide resistance, the population of Chilo suppresalis, a major pest of rice and wild rice stems, has shown a sharp increase. At present, the use of chemical insecticides is still the main means of borer control, and the frequency of application is high and the amount of application is large. Unreasonable use of drugs has killed a large number of natural enemies,...

AI Technical Summary

Problems solved by technology

Unreasonable use of drugs has killed a large number of natural enemies, seriously damaged the ecological balance of the farmland ecosystem, and lost the natural control ability

The large and continuous use of chemical pesticides also leads to the emergence of pest resistance, and even leads to the situation where no pesticides are available

At the same time, it also led to serious pesticide residue problems, causing pesticide residues in crops to exceed the standard, posing a serious threat to human health

Most borers are borer pests, causing hidden damage. Only a few insecticides with strong systemic permeability and special effects on Lepidoptera insects are suitable for the control of borers, and the control effect is not good. Negative impacts on aquatic ecosystems and their organisms

Images