Characteristics and control of the third generation of rice stem borers in single and double rice cropping areas:;

The transfer pattern of the 3rd generation larvae of cornborer in cotton field;

The pattern of transfer harm and control of three pyralid caterpillars in corn fields.;

The paper dealt with the spatial distribution patterns of yellow rice borer larva, Scirpophaga incertulas (Walker) using the description of indices of patchiness in the field, and measuredthe individual group size of larva and analyzed the contagious reasons.

Having made use of 24-year data, this paper has studied the relationship between G3 maize borers and meteorological conditions and ascertained that temperature is the dominant factor affecting the time of egg peak date.