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在 1 8、2 3、2 8、3 2和 3 4℃ 5个恒温处理下 ,测定了斜纹夜蛾侧沟茧蜂在斜纹夜蛾幼虫不同密度下的寄生效应。结果表明 ,在试验温度范围内 ,各温度下的功能反应实验数据均能用 Holling圆盘方程较好地拟合。瞬间攻击率随温度升高而增加 ,但各温度间差异不显著。 3 2℃和 3 4℃高温下的处理时间比 1 8℃、2 3℃和 2 8℃要短 ,差异显著
The parasitism of Spodoptera litura was measured at different densities of Spodoptera litura under 5 constant temperature treatments of 1, 8, 23, 28, 32 and 34 ℃. The experimental results show that the experimental data of functional reaction at various temperatures can be fitted well by the Holling disc equation in the experimental temperature range. Instant attack rate increases with temperature, but the difference between the temperature is not significant. The treatment time at 32 ℃ and 34 ℃ was shorter than that at 18 ℃, 23 ℃ and 28 ℃, and the difference was significant