中国蔬菜Issue(8)：75-79,5.DOI:10.19928/j.cnki.1000-6346.2024.5025
设施西瓜卵形异绒螨与瓜蚜发生动态分析
Analysis of Occurrence Dynamics of Allothrombium ovatum and Melon Aphids in Facility Watermelon
摘要
Abstract
Melon aphid(Aphis gossypii)is an important limiting factor for facility watermelon production.During field survey,we discovered in spring facility cultivation there was a certain amount larva of Allothrombium ovatum.Whether these larvae could inhibit the population of melon aphid?It was currently unclear.This study conducted monitoring on larva of Allothrombium ovatum and contemporaneous population of melon aphid,in 2 watermelon plastic-covered tunnels without chemical application at Yanqing district of Beijing;and also analyzed their occurrence dynamics.The results showed that in Yanqing plastic-covered tunnel and watermelon fields the main occurrence stage for Allothrombium ovatum was from May 19th to June 15th.These mites were either free crawling or parasitic on the body of melon aphids.In 2 watermelon plastic-covered tunnels the naturally occurring mite strain rates could reach as high as 26.67％and 33.33％.The number of mites per hundred stains could reach 83.33 heads and 100 heads.Meanwhile,the highest rate of aphid was 26.67％in the same period.Subsequently,the melon aphid populations declined.The exponential population growth trend under suitable environment was not yet presented,indicating that in spring facility watermelon plastic-covered tunnel Allothrombium ovatum could suppress the population of melon aphid in suitable climate years.Attention should be paid to the protection and utilization in production.关键词
设施西瓜/卵形异绒螨/发生动态/瓜蚜/种群控制Key words
facility watermelon/Allothrombium ovatum/occurrence dynamics/melon aphid/population control引用本文复制引用
佘小玲,王少丽,周成贤,吴丹,贺纪婷,吕洋,刘立娟..设施西瓜卵形异绒螨与瓜蚜发生动态分析[J].中国蔬菜,2024,(8):75-79,5.基金项目
现代农业产业技术体系北京市特色作物创新团队项目(BAIC04-2024) （BAIC04-2024）
