不同食料植物对舞毒蛾生长发育的影响

Performance of Lymantria dispar L.'s growth and development on different food plants.

该文在以北京主要乔灌木树种为食料、室内饲养舞毒蛾的条件下 ,分析了不同食料植物对舞毒蛾生长发育的影响 .1龄幼虫成活的试验表明 :受试各树种间存在显著差异 ,舞毒蛾 1龄幼虫在柿、杏、黄栌、毛泡桐、火炬树等树种饲养下死亡率较低 ,在核桃楸、国槐、刺槐、臭椿等树种饲养条件下死亡率较高 .4龄幼虫对食物的利用和转化的试验表明 :舞毒蛾对柿树、黄栌、杏树、加杨的营养效率较高 ,对华山松、国槐、刺槐、白蜡和抗虫杨的营养效率较低 .

The paper analyzes the influences on Lymantria dispar L.'s growth and development caused by the primary trees and shrubs in Beijing area, on the condition that the Lymantria dispar L.larvae are raised indoors.Experiments on survival of the first-instar larvae shows:there exists an obvious difference among the representative plants, that is, the first-instar larvae have a lower mortality in Diospyros kaki L.,Armeniaca sibirica (L.)Lam.,Cotinus coggugria Scop.,Paulowina tomentosa (Thunb.)Steud. and Rhus typhina Mutt. etc.,while they have a higher one on the same conditions of Juglans mandshurica Maxium., Sophora japonica Linn.,Robinia pseudoacacia Linn. and Alianthus altissima Swingle etc.Experiments that studied the utilization and transformation of the fourth-instar larvae of Lymantria dispar L. reared on different food plants shows:the Lymantria dispar L.larvae have a higher nutrient effect to Diospyros kaki L., Cotinus coggugria Scop.,Armeniaca sibirica (L.)Lam and Populus canadensis Moench, they have a relatively lower nutrient effect to Pinus armandii Franch., Sophora japonica Linn., Robinia pseudoacacia Linn.,Fraxinus chinensis Rosb. and Bt (Bacillus thuringiensis) transgenic poplar (Populus nigra L.).