【摘要】 杏毛球蚧是绣线菊等园林花卉的重要害虫之一，它产卵多、繁殖强、危害重，准确测报发生量与若虫孵化期，是防治成败的关键。１９９９年４～６月对产卵末期雌虫体重、长及产卵量的测定与合肥室内变温、恒温饲养研究表明， 其平均体重为Ｘ１＝ ００４８６±００１５８ （ｇ），平均体长为Ｘ２＝ ５１６±０４６ （ｍ ｍ ）， 平均产卵量为Ｘ３＝ ４９１９６±１８１２８ （粒）； 产卵量与体重、体长相关方程式分别为： Ｙ１＝ － ４７２００１９＋ １１１０３３５０４５Ｘ１， ｒ１＝ ０９６８６＞ ｒ００１＝ ０４９６９；Ｙ２ ＝ － １１３７２２８０６＋ ３１５９８９２８Ｘ２， ｒ２ ＝ ０７９７４＞ ｒ００１＝ ０４９６９。卵期发育起点温度： Ｃ１ ＝１４６６±０２３ （℃） 或Ｃ２＝ １５５２±００１４ （℃）； 有效积温Ｋ１＝ １７０２９８±３９９３ （ＤＤ） 或Ｋ２＝ １５８９９±５７０２ ＤＤ。预测式为Ｎ１＝ １７０３±４Ｔ－ （１４７±０２３）或Ｎ２＝ １５９±５７Ｔ－ （１５５±００１）。经检验与实际符合更多还原

【Abstract】 Didesmococcus koreanus Borchs is one of the most serious pests in Sophora japonica and other garden plants. An accurate forecast of fecundity and oviposition period is of great importance in this pest’s control.Some characters including the fecundity,initial temperature (C),effective accumulated temperature (K),the fresh weight and body length of female adults at the later period of laying eggs of this pest were tested in this study and the reults were as follows:the average weight 1=0 0486±0 0158 g;the average length 2=5 16±0 46 mm;the average oviposition amount 3=4919 6±1812 8 eggs;the relationship between oviposition amount and weight and length 1=-472 0019+111033 5045X 1,r 1=0 9686>r 0 01 =0 4969; 2=-11372 2806+3159 8928X 2,r 2=0 7974>r 0 01 =0 4969;the initial temperature C=14 66±0 23 (℃) or C=15 52±0 014 (℃);the effective accumulated temperature K=170 298±3 993 (DD) or K=158 99±5 702 (DD).The predicting formula was summarized as N=170 3±4T-(14 7±0 23) or N=159±5 7T-(15 5±0 01),and its practical forecast proved to be quite well.更多还原