排序方式: 共有55条查询结果,搜索用时 15 毫秒
1.
2.
Sven Buchholz Peter Neumann Katharina Merkel H. Randall Hepburn 《Journal of pest science》2006,79(4):251-254
Small hive beetles, Aethina tumida Murray, are parasites and scavengers of honeybee colonies, Apis mellifera L., and have become an invasive species that can cause considerable damage in its new distribution areas. An effective subspecies of Bacillus thuringiensis Berliner (=Bt) would provide an alternative to chemical control of this pest. Therefore, we tested three different Bt strains [B. thuringiensis, var. aizawai (B401®), B. thuringiensis var. kurstaki (Novodor®) and B. thuringiensis var. San Diego tenebrionis (Jackpot®)] and Perizin® (3.2% coumaphos), each applied on combs with a pollen diet fed to pairs of adult beetles. This evaluates the products for the suppression of successful small hive beetle reproduction. While none of the tested Bt strains showed a significant effect on the number of produced wandering larvae, we could confirm the efficacy of coumaphos for the control of small hive beetles. We further show that it is also efficient when applied with a lower concentration as a liquid on the combs. We suggest the continued search for efficient Bt strains naturally infesting small hive beetles in its endemic and new ranges, which may become a part of the integrated management of this pest. 相似文献
3.
在距蜂箱10 m 的地点放置质量浓度为0.75 kg· L- 3的蔗糖液,以测定各日龄意蜂的个体采蜜量.结果表明,采集蜂最小日龄为3 日龄,13~27 日龄段的工蜂采蜜量最高,每只蜜蜂每次采集69.44~75.25 m g;12 日龄以前的标记蜂采蜜量不稳定,随着日龄的增长逐渐趋于稳定;在测定地点,标记蜂11 日龄开始明显增多,直到28 日龄后减少.根据实验结果可以初步判定,近距离采集的适龄采蜜蜂为 13~27 日龄.此项研究结果对蜜蜂饲养管理技术的改进有重要参考价值. 相似文献
4.
授粉不足日益成为影响国内农业生产的一项严重问题。蜜蜂是高效的授粉昆虫,在我国大规模饲养,应在解决作物授粉不足问题上发挥重要作用。在实际利用蜜蜂进行授粉时,因不同群势大小的蜂群内部需求不一样,蜜蜂采集的偏好性不同。而授粉对象作物的泌蜜、泌粉情况也是不同的,对蜜蜂的吸引力也有所差别。这些差异最终导致在利用蜜蜂为农作物授粉时的效率差别较大。为高效利用蜜蜂为作物授粉,探究为不同泌蜜和泌粉状况作物授粉的合适蜂群,笔者分析了不同开花作物的泌蜜、泌粉类型,以及不同大小群势蜂群的内在需求、采集行为和偏爱性等与授粉相关的生物学特性,得出了利用强群为泌蜜较多或者蜜粉均较多类作物授粉,以及利用3~4脾左右小群为粉多蜜少类作物授粉的结论。该结果具有一定的理论意义和实践价值。 相似文献
5.
Marc O. Schäfer Wolfgang Ritter Jeff S. Pettis Peter E. A. Teal Peter Neumann 《Journal of pest science》2009,82(3):283-287
In honeybee, Apis mellifera, colonies infested with larval and adult small hive beetles (SHB), hive material, and in particular honey, tends to ferment,
probably due to SHB-associated yeasts such as the predominant Kodamaea ohmeri. Here, we test the effects of organic acids on K. ohmeri and on SHB-infested honey/pollen combs. Organic acids were applied at standard concentrations used by beekeepers to control
other pests. In laboratory tests, the growth of K. ohmeri was significantly inhibited by lactic, formic and acetic acids. Treatments of SHB-infested honey/pollen combs (N = 18 colonies) with acetic acid significantly increased mortality of adult SHB and treatments with formic acid significantly
reduced larval infestation. Our data suggest that treatment of honeybee colonies and storage rooms with organic acids could
also help in reducing SHB damage. 相似文献
6.
蜜蜂授粉在西葫芦制种上的应用研究 总被引:1,自引:0,他引:1
利用蜜蜂为早育一代西葫芦杂交种授粉。结果,西葫芦生长速度提高了8.5%,每公顷减少人工授粉费用1800元,种子数量每株增加485粒,每株种子重量增加4.99g,每公顷增产187.13kg,增加收入4116元,完全可代替人工授粉。 相似文献
7.
测定本地意蜂(安徽肥东)、西非尼日利亚非洲蜂、本地意蜂与非洲蜂杂交第一代的蜂群工蜂吻长、右前翅长、右前翅宽、肘脉指数、第三背板宽度和第四背板宽度,并对测定的性状特征数据进行数学分析,结果表明,本地意蜂(安徽肥东)(A)、西非尼日利亚非洲蜂(B)、本地意蜂与非洲蜂杂交第一代的蜂群(C)的吻长、右前翅长、前翅面积、前翅肘脉a、第三节背板宽、第四节背板宽都存在极显著的差异,右前翅宽存在显著差异,而三者的前翅肘脉b以及翅脉指数差异不显著。这三种蜜蜂种群内遗传变异丰富,种群形态性状的多态性、多型性及其生态地理变异式样,具有生态适应意义。 相似文献
8.
通过比较熊蜂和蜜蜂对大棚栽培草莓的授粉效果试验得出,与蜜蜂相比,熊蜂的出巢时间早,工作时间长,趋光性差,撞棚膜现象发生少,且饲喂简单,饲料投入量少。采用熊蜂授粉的草莓平均产量可达16708.5kg/hm2,比采用蜜蜂授粉的棚增产35.0%;熊蜂授粉草莓单果质量为8.28g,比采用蜜蜂授粉的增加58.6%,差异显著;熊蜂授粉的草莓糖度为11.68%,蜜蜂授粉的草莓糖度为11.29%,差异不显著;熊蜂授粉的草莓畸形果率平均比蜜蜂授粉的低67.9%,差异显著。试验结果进一步说明了熊蜂比蜜蜂更适合用来进行设施草莓授粉。 相似文献
9.
位于重庆市东南部的彭水县因亚热带湿润季风气候使其生物资源丰富,种类繁多。对彭水县蜜粉源植物调查发现150余种蜜粉源植物,其中野生具有药用价值的99种,隶属于49科,84属。重要的药用蜜粉源植物有盐肤木(Rhus chinensis Mill.)、川莓(Rubus setchuenensis Bureau et Franch.)、川续断(Dipsacus asperoides C. Y. Cheng et T. M.Ai)、大叶醉鱼草(Buddleja davidii Franch.)等。 相似文献
10.