多虱的

For the first time, this study conducted a series of field sampling in multiple locations over several years and demonstrated that the B and Q biotypes first invade areas with high frequency of transport through human movement of plant materials, and then rapidly spread into surrounding areas and displace indigenous genotypes, and in parallel with displacement significant changes in sex ratio occurred in the mixed populations. Crossing experiments demonstrated that in the B. tabaci species complex there are many genetic groups that are completely or nearly completely isolated in reproduction. Apart from behavioural mechanisms, difference in host plant suitability and insecticide susceptibility between whitefly biotypes may also play important roles in the displacement of indigenous whiteflies by alien whiteflies in Zhejiang.

本研究首次以一个地理区域内广泛系统的野外调查数据证实，B型和Q型烟粉虱首先通过花卉苗木调运入侵交通较为发达的地区，然后迅速向周边扩张并取代土著烟粉虱，同时入侵取代过程伴随着混合种群中性比的变化；杂交试验证明烟粉虱复合种内存在多个生殖上隔离或基本隔离的遗传群；B型烟粉虱在浙江省内迅速取代土著烟粉虱，除行为机制外，生物型之间寄主适应性和药剂敏感性等方面的差异也可能在此过程中起着重要作用。

Tabaci B biotype can carry the broad mite, Polyphagotarsonemus latus, with phoresy rate by 15. 5 percent. This investigation gave some practice guide to their integrated management.

调查还证明B型烟粉虱可以携带侧多食跗线螨，携播率平均为15.5％，调查分析结果可为今后合理防治提供一定的实践指导。

Tabaci was the shortest (19.3 d) on hairy gourd and the longest (29.0 d) on bitter cucumber, the survival rate from egg to adult was the highest (92.85%) on cucumber and the lowest (53.08%) on bitter cucumber, the laid eggs were the most (187.4 eggs per female) on cucumber and the least (30.0 eggs per female) on bitter cucumber, and the longevity was the longest (25.2 d) on cucumber and the shortest (10.9 d) on bitter cucumber. The intrinsic rate of increase r(subscript mon cucumber, hairy gourd, bitter cucumber, and sponge gourd was 0.1453, 0.1429, 0.0616, and 0.1055, respectively.

结果表明，B型烟粉虱在节瓜上的世代发育历期最短，为19.3d，在苦瓜上的世代发育历期最长，为29.0d；世代存活率在黄瓜上最高，为92.85%，在苦瓜上最低，为53.08%；平均单雌产卵量在黄瓜上最多，为187.4粒，苦瓜上最少，为30.0粒；雌成虫寿命以在黄瓜上最长，为25.2d，在苦瓜上最短，为10.9d.B型烟粉虱在黄瓜、节瓜、苦瓜和丝瓜上的内禀增长率r(下标 m分别为0.1453、0.1429、0.0616和0.1055。

There were many adults and nymphae of psocids when the temperature over 15℃ and almost nil under 5～2℃.

在粮温15℃以上时，可以检测到较多的书虱成虫，当粮温降到5~2℃左右时，检测到的书虱密度几乎为0。

The synergism ratios of piperonyl butoxide to alpha-cypermethrin in these three strains were similar(about 20-fold), which suggested metabolic detoxification probably confers about 20-fold inherent resistance in the B-type whitefly, as PBO is a mixed function oxygenase and esterase inhibitor and glutathione S-transferase is not affinity to resistance in B. tabaci. The synergism ratio of triphenyl phosphate to alpha-cypermethrin in the NJ strain was 12-fold, which implied the synergism of PBO in the B-type whitefly is mainly due to inhibiting esterase activity.

增效试验表明PBO对这三个品系的增效作用均为20倍左右，因为在烟粉虱中PBO即是多功能氧化酶抑制剂，也是酯酶抑制剂，而谷胱甘肽S-转移酶与抗性无关，因此推断代谢酶在B型烟粉虱对高效氯氰菊酯的抗性发展中起到的相对作用可能为20倍左右，而且这种抗性是B型烟粉虱天生的；TPP对NJ品系的增效作用为12倍，说明PBO增效作用主要是由于抑制酯酶而引起的，即代谢抗性大部分由酯酶所贡献。

He should not have done this recording as I find it simply not good. his tempi are so slow that all dramatics are sucked out of the characters; Wilhelm perhaps thought he was conducting wagner: loud and slow does the trick.

这位风流恶少，到处勾引女人，又到处惹下麻烦，不仅欠下孽债太多，还好像是虱多不痒，索性玩世不恭，竟于墓地邀请他杀死的总督的石像赴宴——无疑是邀来了死神，终于有了报应。

He should not have done this recording as i find it simply not good.His tempi are so slow that all dramatics are suckde out of the characters;Wilhelm perhaps thought he was conducting Wagner;Loud and slow does the trick.

这位风流恶少，到处勾引女人，又到处惹下麻烦，不仅欠下孽债太多，还好像是虱多不痒，索性玩世不恭，竟于墓地邀请被他杀死的总督的古像赶宴——无疑是邀来了死神，终于有了报应。

He should not have done this recording as i find it simply not good.His tempi are so slow that all dramatics are suckde out of the characters;Wilhelm perhaps thought he was conducting Wagner;Loud and slow does the trick.

这位风流恶少，到处勾引女人，又到处惹下麻烦，不仅欠下孽债太多，还好像是虱多不痒，索性玩世不恭，竟於墓地邀请被他杀死的总督的古像赶宴——无疑是邀来了死神，终於有了报应。

The yellow boards play an important role in prevention and cure white fly in greenhouse because they can trap, stick and kill white fly. The test also shows that almost white fly often appear in the space where 5cm-15cm upper than the top of the plant. According to this result, the optimal hanging height of the yellow board should be at the place where 5cm-15cm upper than the top of the plant. The yellow boards should be set up as much as possible in this space to reach the best preventative effect.

同时使用黄板诱杀这一物理防治方法，也可有效减少温室内白粉虱数量，并且确定了植物顶端上方5~15cm处是白粉虱较活跃的区域，因此黄板应尽可能多的覆盖这一区域，以达到最好的防治效果。

The results indicated that the effects of all insecticides on control spiraling whitefly was significantly different. Acetamiprid, methomyl and beta-cypermethrin were more effective against the pest.

结果表明，不同药剂对不同虫态的螺旋粉虱的防效存在显著差异，而啶虫脒、灭多威和高效氯氰菊酯对成虫和若虫均有理想防效。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了