摘要
柑桔木虱在寄主植物上种群数量的大小依次为九里香、幼年柑桔树和成年柑桔树。夏季高温(旬均气温28℃以上、极端高温37℃以上)、秋季干旱(相对湿度70％左右)和9月以后柑桔木虱姬小蜂数量上升,对柑桔木虱的种群有抑制作用。但5月下旬到6月,当寄主树冠上有茂盛的嫩梢、旬均气温在25℃左右和相对湿度在80％上下时,田间有可能暴发柑桔木虱。这时应特别注意保梢治虫,以控制柑桔黄龙病的流行。
The numbers of citrus psyllid on the host plants in decreasing order were as follow: Murraya paniculata, young and adult citrus trees. The high temperature in summer (mean temperature, over 28℃and maximum one, over 37℃), dry in autumn (relative humidity, around 70%) , and the increase of population of Tamarixia radiata after September restrain the growth of citrus psylla. But, this pest maybe break out when the tender shoots formed in the crown of host plants, mean temperature in 10-day duration is 25-27℃ and relative humidity is 77-83%. In this period pesticide should be sprayed to control effectively the epidemic of citrus Huanglungbin.
出处
《福建农业学报》
CAS
1992年第2期60-64,共5页
Fujian Journal of Agricultural Sciences
关键词
生态因素
种群消长
柑桔木虱姬小蜂
Ecologic Factor
Population dynamics
Tamarixia radiata Wat
