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在室内条件下,以大豆叶片为食物饲养棉蝗并系统观测其各虫态的发育历期,测定了雌雄各龄若虫和成虫的取食量及其体长、体重等指标参数。结果表明:在27~28℃条件下,卵的平均发育历期为98.19 d,雌雄若虫的平均发育历期分别为65.90和58.68 d,雌雄成虫的平均寿命分别为116.25和146.75 d。各发育阶段对大豆叶片的累积取食量回归模型为:取食质量,雄虫,ym♂=763 637.552 0/[1+exp(19.892 3-1.515 8x)](R2=0.997 7),雌虫,ym♀=1 614 393.604 8/[1+exp(23.309 1-1.970 2x)](R2=0.998 6);取食面积,雄虫,ys♂=14 776 047.963 4/[1+exp(18.657 1-1.524 5x)](R2=0.997 1),雌虫,ys♀=22 861 437.346 9/[1+exp(19.444 6-1.670 6x)](R2=0.998 2);体长和体重随着龄期的增加而增加,体长和体重的生长模型分别为:体长,雄虫,yl♂=7.392 9/[1+exp(2.103 2-0.420 729x)](R2=0.990 5),雌虫,yl♀=13.046 9/[1+exp(2.772 9-0.392 563x)](R2=0.996 8);体重,雄虫,yw♂=2.873 4/[1+exp(5.061 9-0.911 303x)](R2=0.982 6),雌虫,yw♀=3.918 1/[1+exp(9.045 7-1.700 7x)](R2=0.990 5)。
Under indoor conditions, the cotton leaf locusts were used to feed cotton locusts and their developmental stages were systematically observed. The feeding parameters and body length and body weight of each locust were determined. The results showed that the mean developmental period of eggs was 98.19 days at 27-28 ℃, and the average developmental stages of male and female nymphs were 65.90 and 58.68 days respectively. The average life span of male and female adults was 116.25 and 146.75 days respectively. The regression model for the cumulative food intake of soybean leaves at various developmental stages was: feeding quality, male, ym♂ = 763 637.552 0 / [1 + exp (19.892 3-1.515 8x)] (R2 = 0.997 7) , ym♀ = 1 614 393.604 8 / [1 + exp (23.309 1-1.970 2x)] (R2 = 0.998 6); feeding area, male, ys♂ = 14 776 047.963 4 / [1 + exp -1.524 5x)] (R2 = 0.997 1), female, ys♀ = 22 861 437.346 9 / [1 + exp (19.444 6-1.670 6x)] (R2 = 0.998 2) (R = 0.990 5), female, yl (subscript a) = 7.392 9 / [1 + exp (2.103 2-0.420 729x)], and the growth of body length and body weight were as follows: R2 = 13.046 9 / [1 + exp (2.772 9-0.392 563x)] (R2 = 0.996 8); weight, male, yw♂ = 2.873 4 / [1 + exp 0.982 6), females, yw♀ = 3.918 1 / [1 + exp (9.045 7-1.700 7x)] (R2 = 0.990 5).