The species and the number of predators of Dendrolimus punctatus (Walker) larvae were investigatedin vallous pine forest type in Wannian County, Jiasexi Province of China according to field data and laboratoryobservation.

Effects of Different Wheat-cutting Dates on Predators and Cotton Seedling Aphids in Wheat-cotton Intercropping Field;

Fuzzy cluster analysis of the cotton aphid and its predators in Chinese prickly ash orchard;

The mixed populationof predators have two pcaks in cotton growing scason.

Effects of Different Intercropping Models on Wheat Aphids and Their Predator Commuunities;

Dynamics of predators in rice canopy and capacity of natural control on insect pests in paddy fields with different nitrogen regimes;

Preliminary investigation of the predators in Caozhou Mudan Garden of Heze City,Shandong Province;

Population dynamics of predatory enemies of cotton field in Southern Xinjiang;

Systematically searched the quantities the predatory enemies and pests took place in cotton field, analyzed the time when the main pests and predatory enemies wildly took place and also correlatively analyzed the predatory enemy s ability of following the pests.

This paper dealt with killing effects of seven herbicides and eight fungicides on Nilaparvata lugens and its predatory enemies.

Based on preliminary investigation in fixed position in Xiangyin,42 species 13 families of spider and 26 species of insect natural enemy were found in the community of predatory natural enemies of single-cropping paddy fields.

The natural enemy resources in three different topographic tea plantations of Qiliqiao tea factory in Qimen county was investigated,and 57 species of predatory natural enemies belonging to 19 families were found,particularly,39 species of spiders belonging to 12 families were studied in details.