| 泽兰实蝇生物学特性的初步研究 |
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| 引用本文： | 张智英,魏艺,何大愚.泽兰实蝇生物学特性的初步研究[J].中国生物防治,1988(1). |
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| 作者姓名： | 张智英 魏艺 何大愚 |
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| 作者单位： | 中国科学院昆明分院生态研究室
(张智英，魏艺)，中国科学院昆明分院生态研究室(何大愚) |
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| 摘 要： | 野外观察和室内试验表明:紫茎泽兰的专食性天敌泽兰实蝇,在昆明地区周年可完成4～5个世代,卵、幼虫、蛹和成虫历期分别为3～5、25～30、20～25和7～11天。由于泽兰实蝇的寄生,使紫茎泽兰的生长繁殖显著受到抑制,开花数减少40～80％,种子萌发率减少25～30％。
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| 关 键 词： | 泽兰实蝇 紫茎泽兰 |
BIOLOGY OF A GALL FLY,PROCECIDOCHARES UTILIS [DIP.:TEPHRITIDAE] AND ITS IMPACT ON CROFTONWEED,EUPATORIUM ADENOPHORUM |
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| ZHANG Zhiying WEI Yi HE Dayu.BIOLOGY OF A GALL FLY,PROCECIDOCHARES UTILIS [DIP.:TEPHRITIDAE] AND ITS IMPACT ON CROFTONWEED,EUPATORIUM ADENOPHORUM[J].Chinese Journal of Biological Control,1988(1). |
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| Authors: | ZHANG Zhiying WEI Yi HE Dayu |
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| Abstract: | Procecidochares utilis Stone, an introduced host specific stem gall fly of crofton weed (Eupatorium adenophorum Spreng), has 4. to 5 generations a year in Kunming, Yunnan Province. The developmental period of eggs larvae, pupae and adults are 3-5, 25-30, 20-25, and 7-11 days, respectively. Results of field investigations and laboratory studies showed that parasitization by the fly affected the growth and sexual reproduction of the weed. The number of flowers of the parasitized weed decreased 40-80%, while seed germination decreased 25-30%. |
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| Keywords: | Prgcecidochares utilis Eupatorium adenophorum weed biological control |
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