瓜叶菊上美洲斑潜蝇的生物学特性及蛹的耐寒性研究

1 材料与方法 1．1 材料 供试植物为宁夏西夏区甜菜所温室大棚种植生长良好的瓜叶菊、黄瓜、翠菊、豌豆等。供试昆虫是用上述大棚种植瓜叶菊在实验室饲养的美洲斑潜蝇。

Study on Biological Characteristics and Pupa's Cold Tolerance of Liriomyza sativae on Florists cineraria

In this study,Liriomyza sativnes was raised on Florist cinerarias in greenhouse with different temperatures at 15,20,25,30 and 35 ℃,and their corresponding development duration of entire generation were 47.0,25.0,15.5,12.5 and 12.0 d. The beginning growth temperatures of egg,larva,pupa and entire generation of Liriomyza sativae were 8.5,9.8,10.2 and 10.4 ℃,and their effective accumulated temperatures were 52.7,75.8,158.5 greenhouse.The length of its development duration in greenhouse decreased in order from cucumber,Callestephus chinensis,Florist cinerarias to pea,but the eclosion rate of its pupa was in the contrary order.Under the temperature of 10,0,-15 and 20 ℃,the longer the storage of pupa was,the higher the mortality rate would be.Liriomyza sativae couldn't surive in the winter in Ningxia Prodnce in the natural environment.