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农田烟粉虱寄主植物调查初报   总被引:12,自引:2,他引:10  
2001~2002年通过调查福州、漳州农田烟粉虱寄主范围,记录农田烟粉虱寄主植物17科62种(变种).其中豆科7种、茄科6种、十字花科8种、葫芦科9种、菊科10种、苋科4种、藜科4种、旋花科2种、锦葵科2种、、大戟科2种、柳叶草科2种、蓼科1种、玄参科1种、番杏科1种、大麻科1种、免丝子科1种、伞形花科1种。农田烟粉虱寄主植物主要以蔬菜作物和农田阔叶杂草为主。  相似文献
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非形态特征在粉虱分类中的运用(同翅目:粉虱科)   总被引:5,自引:0,他引:5  
粉虱的分类主要利用第四龄幼虫 (蛹壳 )的特征而非成虫特征 ,而有的种类的形态有很大变异 ,完全依赖形态特征对某些种类 (特别是近缘种 )进行鉴定或鉴别是有困难的。因此 ,非形态特征的应用在粉虱分类中有一定的特殊价值。本文列举了一些可以用于昆虫分类的非形态特征 ,介绍了主要以非形态特征进行分类的特例——烟粉虱 Bemisia tabaci ( Gennadius)和银叶粉虱 Bemisia argentifolii Bellow &Perring的鉴别 ,并对非形态特征在分类中的合理运用进行了讨论。  相似文献
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中国新疆地区粉虱种类(半翅目:粉虱科)记述   总被引:2,自引:0,他引:2  
记述了新疆地区粉虱5属6种,即欧洲甘蓝粉虱Aleyrodes proletella(Linnaeus),葡萄穴粉虱Aleurolous shantungiTang,非洲小粉虱Bemisia afer(Priesner&Hosny),烟粉虱Bemisia tabaci(Gennadius),桑粉虱Pealius mori (Takahashi),温室白粉虱Trialeurodes vaporariorum(Westwood),其中葡萄穴粉虱为新疆新记录种.并且用扫描电镜对其伪蛹进行拍照,并依据玻片标本进行了描述.编制了新疆地区粉虱分类检索表.  相似文献
4.
Abstract The development, survivorship and reproduction of Bemisia tabaci B-biotype on three bean species were studied at 26±1°C in the laboratory. The developmental periods from egg to adult varied from 27.80 days on garden beans to 18.20 days on soybeans. The survivorship from egg to adult on soybeans, cowpeas and garden beans was 77.14, 70.14 and 64.28%, respectively. The average longevity of female adults ranged from 12.30 days on soybeans to 9.80 days on garden beans, and the oviposition of B. tabaci varied from 160.85 eggs on soybeans to 98.00 eggs on garden beans. Life table parameters were calculated as biological attributes for Bemisia tabaci populations fed on three bean species. The results indicated that the intrinsic rate of increase (rm), the finite rate of increase (λ) and net reproductive rate (R0) were high for populations fed on soybeans, with values of 0.1857, 1.2041 and 82.1576, respectively. The corresponding values were less for populations fed on garden beans, with values of 0.1097, 1.1159 and 31.2661, respectively. The parametric values for cowpeas were intermediate between soybeans and garden beans but no significant difference were observed for the rm values for soybeans and cowpeas. Experimental evidence in our investigation indicated that Bemisia tabaci is best adapted and shows the greatest preference for soybean of the three bean species tested in this study.  相似文献
5.
Size and weight measurements were made for all the life stages of Bemisia tabaci (Gennadius) B biotype from field grown cotton ( Gossypium hirsutum L. ) and cantaloupe ( Cucumis melo L., var. cantalupensis )in Phoenix, AZ and Fargo, ND, USA in 2000 and 2001. Nymphal volumes were derived from the measurements.The average nymphal volume increase for settled 1 st to the late 4th instar was exponential. The greatest increase in body volume occurred during development from the 3rd to early 4th instar. Nymphs on cotton leaves were wider,but not longer compared with those on cantaloupe. Ventral and dorsal depth ratios of nymphal bodies from 1st tolate 4th instars from cantaloupe leaves were significantly greater compared with those from cotton leaves. During nymphal development from 1st to 4th instar, the average (from the two host species) ventral body half volume in-creased by nearly 51 times compared with an increase of 28 times for the dorsal body half volume. Adult female and male average lengths, from heads to wing tips, were 1 126 μm and 953 μm, respectively. Average adult fe-male and male weights were 39 and 17 μg, respectively. Average widths, lengths, and weights of eggs from cottonand cantaloupe were, 99 μm, 197 μm, and 0.8 μg, respectively. Average widths, lengths, and weights for exu-viae of non-parasitized nymphs from both cotton and cantaloupe were 492 μm, 673 μm, and 1.20 μg, respective-ly; and widths, lengths, and weights of parasitized nymph exuviae were 452 μm, 665 μm, and 3.62 μg, respec-tively. Both exuviae from non-parasitized and parasitized nymphs from cotton leaves were wider, longer, and heavier than those from cantaloupe leaves.  相似文献
6.
对海南岛粉虱科昆虫进行调查研究,鉴定出粉虱科昆虫2亚科25属57种,包括中国4新纪录种和海南41新纪录种.记述了中国新纪录种:大戟刺粉虱Aleurocanthus euphorbiae Jesudasan&David、长刺粉虱Aleurocanthus longispinus Quaintance& Baker、三孔棒粉虱Aleuroclava tripori(Dubey& Sundararaj)和番荔枝褶粉虱Aleurotrachelus anonae Corbett的形态特征、寄主和分布.区系成份分析表明,海南已知粉虱物种主要为跨东洋和古北区分布种,其次为东洋区分布,少部分为跨多区分布种及世界广布种.确定了鉴定种中的重要粉虱害虫,包括柑橘粉虱Dialeurodes citri (Ashmead)、黑刺粉虱Aleurocanthus spiniferus(Quaintance)、螺旋粉虱Aleurodicus dispersus Russell、双钩巢粉虱Paraleyrodes pseudonaranjae Martin、烟粉虱Benisia tabaci(Gennadius)和番荔枝褶粉虱等在海南发生为害情况.  相似文献
7.
Abstract Effects of four commercial ornamentals on the development, survivorship and reproduction of the whitefly B biotype Bemisia tabaci (Gennadius) were studied in the laboratory (temperature 26 ± 1 °C; relative humidity 75%–90%; L: D 14:10). The total survivorship from egg to adult on hibiscus ( Hibiscus rosa-sinensis L.), poinsettia ( Euphorbia pulcherrima Will), cottonrose hibiscus ( Hibiscus mutabilis L.) and variegated leafcroton ( Codiaeum variegatum'Aucubaefolium' ) were 33.69%, 40.55%, 79.11%, and 29.39%, respectively. The developmental periods from egg to adult varied from 23.12 days on cottonrose hibiscus to 32.13 days on hibiscus. The average longevity of adult females ranged from 6.87 days on variegated leafcroton to 21.07 days on poinsettia. The average numbers of eggs laid per female were 9.20, 25.13, 54.45, and 26.79 on the above respective hosts. The intrinsic rates of natural increase ( rm ) for B biotype B. tabaci on cottonrose hibiscus was the highest. Based on life table analyses of whitefly populations, cottonrose hibiscus was the most suitable host for B biotype B. tabaci in this study.  相似文献
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