Population dynamics and community structure of pests and predators in edible sunflowers in northern Xinjiang
Edible sunflower is an economically significant crop,widely cultivated in northern Xinjiang,which is often suffered from a variety of pests.In 2022 and 2023,field investigations were condcucted to examine the occurrence dynamics and community structure of major pests and predatory natural enemies in edible sunflower fields in northern Xinjiang.The main pests were thrips and Helicoverpa armigera are,with the peak period mainly occurring after mid-July when sunflowers were in full bloom.The ladybirds and spiders were the main predators.The population density of major pests and predators in late sowing fields was found to be higher than that in early sowing fields.Furthermore,the evenness index of predators was found to be significantly different between the two types of fields.However,no significant difference was observed in other diversity indexes of pests or predators.This study provides a reference for the prediction and comprehensive control of sunflower pests.
NETL
NSTL
万方数据
