Plant protective composition for preventing and controlling rice snout moth's larva and its preparation

Abstract

The plant protective composition comprises monosultap and triazophos in the weight ratio of 0.1-10, preferably 0.5-2. The micro emulsion consists of monosultap and triazophos as well as emulsifier, distilled water and alcohol. The micro emulsion as one environment protecting form as a preferential one is prepared by using water, rather than organic solvent, as solvent and has no environmental pollution caused by organic solvent and dust pollution. It has strong adhering force on crop, long effective period and powerful penetration to pest body.

Description

1. Technical field

[0001] The invention relates to a plant protection composition for controlling rice stem borer and a preparation method thereof, especially a plant protection composition mainly composed of monosultap and triazophos and a process for preparing the composition. It is a new industrial product , especially for protecting rice from stem borers. 2. Background technology

[0002] Among the three main food crops, rice has the largest planting area, and Jiangsu Province alone has more than 50 million mu of rice planted. In recent years, with the improvement of people's living standards, the requirements for rice quality have also increased, and many areas have implemented "indica to japonica". Japonica rice has a long growth period, a high probability of being damaged by pests, and its low insect resistance, which intensifies the occurrence of rice pests. The pests that occur all year round include rice stem borer, rice stem borer, leaf roller, and large borer, e...