共查询到20条相似文献,搜索用时 93 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
9.
美洲斑潜蝇形态特征和主要生活习性*孟凡秀王翠萍赵文学张家贵马士华王守宽(济南市植物检疫站济南250022)美洲斑潜蝇(LirioyzasativaeBlanchard)属双翅目、潜蝇科,是世界性检疫害虫。其发生代数多(温度适宜时,仅12天即可完成一代... 相似文献
10.
暂养海鳗行为习性的试验研究 总被引:2,自引:0,他引:2
本文针对海鳗暂养出口需要,进行了暂养海鳗行为习性的试验观察。结果表明,暂养海鳗有明显的昼伏夜出习性,早晨、停晚比较活跃,钻穴性极强。夜间摄食量高于白天。当环境不适时易出现“反胃”现象。耐饥饿能力强。喜停留在照度较弱的区域。夜间有微趋光性等特点。 相似文献
11.
中华砚甲Cyphogenia(Cyphogenia) chinensis (Falderamnn,1835)2年发生1代,以成虫和不同龄期的幼虫越冬.4月中旬至9月上旬产卵,卵期13~30 d,幼虫一般为7龄,幼虫期330~395 d,越冬幼虫于次年6月上旬至8月上旬化蛹,蛹前期18~22 d,蛹期13~16 d,羽化成虫经过270~295 d性成熟,开始交配产卵.食性杂,活动有明显的节律性. 相似文献
12.
13.
14.
15.
几种中药材对抗同贮对赤拟谷盗的影响 总被引:3,自引:0,他引:3
对丁香、吴茱萸、花椒单独和分别与千年健混和(1:1)对赤拟谷盗成虫的死亡率及混和物对虫体内可溶性蛋白质的影响进行了研究。结果表明:①丁香、吴茱萸单独防虫的效果优于与千年健的混和物,并且丁香的防虫效果更好,在第5d,成虫死亡率为100%,而花椒与千年健的混合物对赤拟谷盗的防虫效果高于花椒单独使用。②拟谷盗成虫在混和物中死亡率由高到低为:丁香与千年健的混和物>花椒与千年健的混合物>吴茱萸与千年健的混合物>千年健。虫体内的可溶性蛋白质含量由高到低为:吴茱萸与千年健的混和物>花椒与千年健的混和物>丁香与千年健的混和物>千年健,说明赤拟谷盗成虫体内的可溶性蛋白质含量与其死亡率之间不存在的相关关系。在中药材的养护中,可考虑采用花椒与千年健共贮、丁香、吴茱萸来防治赤拟谷盗。 相似文献
16.
Brown LN 《Science (New York, N.Y.)》1972,176(4030):73-75
The mating activity of the sweet-bay silk moth (Callosamia carolina) was confined to the midday period between 10 a. m. and 3 p. m. The closely related tulip-tree silk moth (Callosamia angulifera), with which Callosamia carolina is often confused, is entirely nocturnal. Reproductive isolation between these sibling species is most probably geared to these differences in circadian activity. Larvae of Callosamia carolina thrived only on the leaves of Magnolia virginiana, upon which the species was double-brooded annually. 相似文献
17.
XU Yong-qiang WANG Jin-jun JIANG Hong-bo DOU Wei TANG Pei-an AN Feng-ming 《中国农业科学(英文版)》2009,8(10):1210-1218
An allele of CYP6BQI3, named CYP6BQ 13v2 (GenBank accession no. FJ209361), was isolated from the red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) by RT-PCR. The cDNA sequence of CYP6BQ13v2, 1 563 bp in length, contains an open reading frame of 1 554 nucleotides encoding a putative protein of 518 amino acid residues with a predicted molecular weight of 59.92 kDa and a theoretical pl of 7.60. The putative protein contains the classic hemebinding sequence motif F××G×××C×G (residues 456-465) conserved among all P450 enzymes as well as other characteristic motifs of all cytochrome P450s. It shares 98% identity with the previously published sequence of CYP6BQ13 (GenBank accession no. XP967146) from the T. castaneum genome project. Phylogenetic analysis of amino acid sequences from members of various P450 families indicated that there was closer phylogenetic relationship of CYP6BQ 13v2 with CYP302A1 and CYP307A1 mediating synthesis of the insect molting hormone, distant relationship with CYP6B1 metabolizing plant allelochemicals, CYP6D 1 linking to pyrethroid resistance and other members of CYP6 family. Expression test of the gene in the adults and immature stages of T. castaneum by quantitative real-time PCR revealed that CYP6BQ13v2 is expressed in all life stages investigated. The mRNA expression level in 1st instar larvae was 14.9- and 3.86-fold higher than those in pupae and adults, respectively. The CYP6BQ13v2 expression levels appeared in the order of 1st instar larvae, followed by 4th instar larvae, 7th instar larvae, adult, and pupae from high to low. The more bioinformation of CYP6BQ 13v2 was also analyzed. 相似文献
18.
19.
20.
实验研究了3种补充营养材料对洋虫生殖力的影响。结果表明:3种补充营养材料对洋虫产卵前期、卵期、产卵量、雌虫寿命的影响存在显著差异.其中,用全麦粉作为洋虫成虫的饲料,可以缩短成虫的产卵前期,增加产卵量,产卵前期平均为6.50d,平均产卵量为78.70粒。所以,就繁殖种群而言,在洋虫羽化后饲喂全麦粉有利于种群获得更大的产卵量,更有利于种群的繁殖. 相似文献