湿度和寄主对黑点蚧实验种群生长的影响

INFLUENCE OF HUMIDITIES AND HOST PLANT ON THE GROWTH OF LABORATORY POPULATION OF THE CITRUS BLACK SCALE (Parlatoria zizyhus Lucas)

在相对湿度为70%～90%时,甜橙苗有利于黑点蚧种群发育和繁殖,高于90%或低于70%时,生长育发受到抑制。湿度在70%以下时,以酸橙苗饲养效果较好。

The influence of relative humidity(RH)and host plant on citrus black scale(P.zizyphus)is dealt with. It reveals that the RH in the range of 70%～90% is most favourable for the growth and reproduction when seedling of sweet orange is used for host plant. If RH is higher than 90% or less than 70%, the growth and reproduction of seale louse will be prevented. When RH less than 70% sour orange seedling is more suisable than that of sweat orange.