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华姬獵蝽在德州地区一年发生3代,部分4代,以成虫兼性滯育越冬?ゴ撇蚜?5～102粒,卵产于棉叶主脉及叶柄内。产卵前期13.0±4.6天,产卵期14.2天±1.9天,卵期7.8±0.7人,1～3龄若虫期分別为5.8±2.3天、4.2±1.3天和5.0±2.0天。成虫和3龄若虫日最大搏食棉蚜量分别为189头和141头。对麦蚜和棉蚜有一定自然控制作用。测定其在自然变温下的发育始点和有效积温,卵为19.2±1.07℃和45.89±6.2日度,若虫为18.35±0.28℃和121.55±10.82日度,成虫产卵前期为19.0±0.65℃和60.76±7.36日度,全世代为19.98±0.46℃和221.63±14.75日度。其在田间发生消长与温度、作物长势、种植方式、喷药等关系密切。
Hua Ji assassin occurred in Texas three generations a year, some 4 generations of adult and part-time diapause overwintering? ゴ write aphid ????????????????????????????????????????????????????????????????????????????????? 13.0 ± 4.6 days before spawning, 14.2 days ± 1.9 days spawning, 7.8 ± 0.7 eggs and 5.8 ± 2.3 days, 4.2 ± 1.3 days and 5.0 ± 2.0 days in 1st to 3rd instar nymphs respectively. Adults and 3rd instar nymphs had the largest number of cotton aphids per day for 189 and 141, respectively. Wheat aphid and cotton aphid have some natural control. The developmental threshold and effective accumulated temperature at natural temperature were measured. The eggs were 19.2 ± 1.07 ℃ and 45.89 ± 6.2, while the nymphs were 18.35 ± 0.28 ℃ and 121.55 ± 10.82 days. The pre-oviposition stage of adults was 19.0 ± 0.65 ℃ and 60.76 ± 7.36 days, all generations for 19.98 ± 0.46 ° C and 221.63 ± 14.75 days. Occurred in the field of growth and decline and temperature, crop growth, planting methods, spraying and so on.