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In low age larva is filled period the effect of prevention and cure to garlic root maggot undertakes different drug experiment and be investigated, the result makes clear: 27 years garlic root maggot produces 3 generation in Jiangsu, generation of live through the winter is imaginal in March the last ten-day of a month fills hair; the middle ten days of a month on April fills generation larva hair, the middle ten days of a month saw in May aurelian, the last ten-day of a month was; of fastigium of generation imago ascend to heaven and become immortal in May the 2nd generation is larval the first ten days of a month was filled to the middle ten days of a month in June hair, the last ten-day of a month came in June in September the last ten-day of a month with aurelian more summer, 2 generation are imaginal at; of the ascend to heaven and become immortal at the beginning of October coming by September the 3rd acting larval fastigium is on October the middle ten days of a month, the first ten days of a month is larval in November in succession pupate live through the winter, immediately following in time year of spring (the middle ten days of a month on April) begin emergence.

在低龄幼虫盛期就不同药剂对大蒜根蛆的防治效果进行试验和调查,结果表明:2007年大蒜根蛆在江苏发生3代,越冬代成虫于3月下旬盛发;第一代幼虫4月上中旬盛发,5月中旬见蛹,5月下旬为一代成虫羽化高峰期;第二代幼虫6月上旬至中旬盛发,6月下旬至9月下旬以蛹越夏,二代成虫于9月底至10月初羽化;第三代幼虫高峰期在10月上中旬,11月上旬幼虫陆续化蛹越冬,翌年春季(4月上中旬)开始羽化。

Combination of indoor rearing and field observations, in 2008 the overwintering codling moth adult emergence is not concentrated, it began in mid-April. The overwintering generation to reach the peak of adult emergence in mid-May, in early June to late June codling moth adult emergence did not intermittent. In early July being the first generation of adult was eclosion, the emergence period long duration and the peak appeared in late-July.

通过室内饲养和田间观察发现,2008年苹果蠹蛾越冬代成虫羽化不集中,4月中旬成虫开始羽化,5月中旬越冬代成虫羽化达到高峰期,6月上旬到6月下旬苹果蠹蛾成虫羽化没有间断。7月上旬第一代成虫陆续羽化,羽化期较长,在(来源:A904040BC论文网www.abclunwen.com)7月下旬达到高峰。8月上中旬诱捕雄成虫数量逐渐减少。

Vg could be detected in haemolmph of the water—fed female at 48h after eclosion, too.

用10%的蜂蜜和清水分别饲喂两组成虫(简称"蜜组"和"水组"),以研究成虫期的营养对Vg发生和卵巢发育的影响,结果显示,成虫期营养对于Vg的启动合成并不起关键的决定性作用,两组成虫均可以在羽化的48小时检测到Vg,且水组中的血淋巴水平并不低于蜜组对照,但绝大多数水组个体的卵巢发育停留在卵黄沉积的某一时期,此时在血淋巴中也检测不到,只有约20%的饲水个体卵巢可以发育成熟,出少量卵;用高剂量的ZR515于羽化当日点滴处理饲水个体,可以使所有接受处理的饲水个体的卵巢发育成熟,但是产卵〓依旧低于对照组的,不能恢复正常;这说明成虫期营养对卵巢中全体卵母细胞的成熟是必需的,其作用的产生是通过内分泌系统途径实现的。

In Hangchow it has four generations each year and the time of its occurrence is well synchronized with that of the scale.

根据测定,隐斑瓢虫对日本松干蚧各虫态的捕食能力较强,一头成虫的日平均捕食量为:显露若虫13.33头,雌成虫4.27头,卵囊3.67个(每个卵囊内平均有卵265.5粒),雄蛹28.27只;一头幼虫全期(或2—4龄和3—4龄)分别能捕食显露若虫39.20—105.56头,雌成虫40.80—47.79头,卵囊39.38—41.79个,雄蛹220.50只。

Of, relating to, or having the form of an insect imago .

成虫的,与成虫有关的,具有成虫形式的

The body length has great individual diversity normally ranged from 25-60 cm, It also shows strong phototaxy. One lamp can trap more than 2 000 of them per night. Female imago has a large egg load with the maximum amount of 543. The eggs hatching is in depth of 1-3 cm soil. The dominant hatching period of egg is from late June to early July, and hatchability is over 85%. The living space of larva ranges from 15-60 cm in soil.

成虫个体差异大,体长25~63 cm;趋光性强,1个诱集点每晚可以诱集成虫2 000多头;雌成虫抱卵量大,最多达543粒,成虫产卵于1~3 cm深土中,卵孵化盛期为6月下旬~7月上旬,孵化率达85%以上,幼虫在15~60 cm土层内取食危害。

At 25℃, eggs hatched after 3.69±0.25 days, the nymph had three instars, the 1st instar stage was 3~5 days, 2nd instar 3~5days, and 3rd instar 4~5 days; The prepupal stage lasted 8~14 days and the pupal stage lasted 10~15 days at 25℃.

2黑广肩步甲成虫人工饲料研究分别研制了9种成虫人工饲料,以此饲喂黑广肩步甲成虫,结果表明,饲料Ⅲ是室内饲养黑广肩步甲成虫的最佳饲料。

The results of the determinating the activity of the CA in vitro showed that the CA of the water—fed individuals were in activing statics after eclosion. Because of the apperence of the Vg in haemolymph and the deposition of the vitellin in oocytes in the unfed females, it was shown that the CA in such individuals were in activiting statics, too. Again because in the water—fed females which did not lack the feeding action the activity of the CA showed dropping tendency gradually still, it could be said that the activiting of the CA was possibly effected by the nutrition but it was never related to the adult feeding action. In another respect, the brain of the female adult had not significant effect on the activiting CA. The oocytes could depositing vitellin in individuals removed brain tissue on the day of eclosion, which showed that the activting of CA was not concerned with brain.

CA活性的体外测定说明饲水个体的CA同样具有活性,不取食个体血淋巴中Vg的存在以及卵母细胞中卵黄的沉积表明,在不取食的个体中CA同样具有活性,所以CA的活化与成虫期的取食动作无关,与成虫是否取食花蜜也无太多的联系,但是CA活性的维持可能受成虫期营养的影响,如果以卵母细胞发育和CA体积大小作为CA活性的指标,则饲水个体CA的活性在后期受到了影响,说明饲水不能替代取食蜂蜜来维持成虫期CA的活性;成虫期脑对CA的活化无明显作用,羽化当日摘除脑的个体,其卵母细胞仍然可以沉积卵黄,说明CA的活化与脑无关,而是受某种不确定的因子的影响;用抗JH物质—早熟素—Ⅱ以10ug/虫的剂量在颈部点滴处理雌虫,对Vg的发生和卵巢的发育具有一定的迟缓作用,其原因有待于进一步的研究。

Japonica and the dark-adapted time would have some effects on the values of ERG of the compound eye of P. japonica. In the same conditions, the ERG value of the male adult was larger than the female;the ERG value of the adult on night was larger than the one in day;the ERG value would increase with the dark-adapted time and made stability in end.

白天和夜晚暗适应一定时间,在相同的相对光强度下,雄成虫的ERG值大于雌成虫;暗适应一定时间,在相同的相对光强度下,雌雄成虫的ERG值均为夜晚高于白天;无论是在白天还是在夜晚,雌雄成虫的ERG值均随暗适应时间的延长而增加,并最后达一平台。

Cypermethrin EC in indoor spiral whitefly adults in the trial, the pharmaceutical effect on the adult is very clear that the vast majority of adult unusual excitement, numbness, beat the performance of several other pharmaceutical control of the maximum In more than 80%.

成虫室内药效作用结果表明:4.5%高效氯氰菊酯在室内用于螺旋粉虱成虫试验中,其药剂对成虫的作用效果非常明显,绝大多数成虫出现异常兴奋、麻痹、击倒的效能,其它几个药剂的最高防治作用在80%以上。

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推荐网络例句

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候,里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色,卵在发育96h后卵基本全部孵化。

There was a conflict between plebs and patricians in ancient Rome in 494BC.

在公元前494年,罗马发生了一次平民反对贵族的斗争。