Method for controlling rice-stem borer

Abstract

The invention discloses a method for preventing and treating rice stem borer, comprising the following steps: step 1, using a circular open trapping pot with an open area of ​​0.2-0.4m 2 , the depth is 8‑10cm, every 20m 2 A trapping pot is placed in the paddy field, and water is added to the trapping pot to 1-2cm away from the upper rock of the trapping pot; Step 2, spray the sex pheromone composition of about 0.1-0.5g to the water surface of the trapping pot after adding water; The stem borer sex pheromone composition comprises the following components in parts by weight: cis-11-hexadecenal 40, cis-13-octadecenal 8, cis-9-hexadecenal 5, cyanine Glycerin, glycerin, ethyl acetate; The method of the present invention uses the sex pheromone composition of rice stem borer to trap male stem borer, can significantly reduce the quantity of second generation stem borer; directly sprays when using, can float in water The surface is suitable for the release of the sex pheromone of the stem borer, the trapping effect is good, and there is no pollution to the environment.

Description

technical field [0001] The invention relates to the field of biological pesticides, in particular to a method for controlling rice stem borer. Background technique [0002] Chilo borer is a common rice pest. The drill string of its larvae can cause serious damage to rice and cause rice yield reduction. In recent years, the occurrence range of rice borer in China has continued to expand, the frequency of outbreaks has continued to increase, and damage losses have continued. Aggravated, and there is a tendency to go north. Observing the current status of the rice borer in the Yangtze River Delta region, its population dynamics and its damage have the following new characteristics: the survival rate of overwintering generations is increased, the occurrence period is earlier, there are many moth peaks under the lamp, and the number of moths occurs is large. To predict the moth peak. Because chemical control brings a series of problems: (1) production cost increases; (2) the po...

AI Technical Summary

Problems solved by technology

Because chemical control brings a series of problems: (1) production cost increases; (2) the point source pollution of atmosphere, water source etc. caused by pesticide production process in nearby areas; Strong concealment, traditional chemical control methods are difficult to master, resulting in a lot of waste of pesticides, causing non-point source pollution of agricultural soil environment and river and lake water systems after use, leading to environmental pollution and damage to farmland ecosystems; The pollution-free control of Chilo borer is imminent