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为搞清楚花斑皮蠹的生物学特性和幼虫密度与化蛹的关系,对花斑皮蠹采用室内饲养和系统观察。结果表明,(1)在相对湿度为(75±3)%,温度为35℃、32.8℃、27.8℃、22.8℃、17.8℃的条件下,花斑皮蠹的蛹期分别为(3.97±0.91)、(4.07±0.88)、(5.13±0.89)(、9.41±1.49)、(18.8±4.3)d,成虫产卵前期分别为(2.14±0.69)、(2.25±0.59)、(2.43±0.92)、(4.53±2.34)、(17.23±5.65)d,卵期分别为(5.59±0.49)、(5.9±0.97)、(8.85±1.04)(、13.79±1.0)(、28.6±0.26)d,蛹平均羽化率为(98.7±0.4)%,每雌虫平均产卵量为(53.6±5.8)粒,卵平均孵化率为(82.8±3.7)%;(2)羽化后的成虫取食蜂蜜后其寿命相应延长,未交尾的雌虫寿命长于雄虫,而交尾后则相反;(3)虫口密度越大末龄幼虫化蛹历期越长;(4)雌雄性比为1.0∶1.1。
In order to find out the biological characteristics and the relation between larval density and pupae, we used indoor feeding and systematic observation to the pest. The results showed that: (1) Under the condition of relative humidity of (75 ± 3)%, temperature of 35 ℃, temperature of 32.8 ℃, temperature of 27.8 ℃, temperature of 22.8 ℃ and temperature of 17.8 ℃, the pupal stage was 3.97 ± 0.91 (2.14 ± 0.69), (2.25 ± 0.59) and (2.43 ± 0.92), respectively, (4.07 ± 0.88, 5.13 ± 0.89, 9.41 ± 1.49, and 18.8 ± 4.3 d, respectively) , (4.53 ± 2.34) and (17.23 ± 5.65) d respectively, and the egg stage were 5.59 ± 0.49, 5.9 ± 0.97, 8.85 ± 1.04, 13.79 ± 1.0, 28.6 ± 0.26 The average fecundity rate was (98.7 ± 0.4)% and average fecundity per females was (53.6 ± 5.8) and eggs were (82.8 ± 3.7)% respectively. (2) After emergence, Life expectancy corresponding extension, unpaired females longer than males, but the opposite after mating; (3) the greater the population density of the larvae of the last larvae pupal period longer; (4) male to female ratio of 1.0: 1.1.