温度对黄瓜钝绥螨发育历期的影响

Effect of temperature on developmental duration of Amblyseius cucumeris

恒温条件下测定了以茶黄螨 (Polyphagotarsonemuslatus)为食的黄瓜钝绥螨 (Amblyseiuscuc umeris)发育历期与温度的关系 .结果表明 ,黄瓜钝绥螨在 18、2 0、2 3、2 5、2 8、30和 31℃温度条件下整个世代的发育历期分别是 13.0 2、9.6 1、5 .96、5 .2 6、4 .6 5、4 .78和 5 .80d ,32℃条件下黄瓜钝绥螨卵不能孵化 .该螨整个世代最低临界、最适和最高临界发育温度分别为 12 .77,2 3.87和 33.5 0℃ .

With Polyphagotarsonemus latus as its prey,the developmental duration of Amblyseius cucumeris was 13.02, 9.61 ,5.96,5.26,4.65,4.78,and 5.80 days at 18,20,23,25,28,30,and 31 °C,respectively. The eggs of A.cucumeris could not hatch at 32 ℃. The lower and upper developmental thresholds and the optimum developmental temperature of A. cucumeris from eggs to adults were 12.77 ℃,33.50 ℃ and 23.87 ℃,respectively.