نتایج جستجو برای: bee pests and predators
تعداد نتایج: 16833259 فیلتر نتایج به سال:
IN THEIR PERSPECTIVE “When the hunter becomes the hunted” (19 June, p. 1312), R. Woodroffe and S. M. Redpath rightly pointed out that a social consensus, in addition to scientific evidence, is critical to effectively control species deemed overabundant, such as some predators, because social conflicts over the need for control undermine management decisions. We stress here that social acceptabi...
Most mites of the family Trombidiidae are ectoparasites in the larval stage and free-living predators in the deutonymphal and adult stages on a variety of arthropods, among which are pests of many economic crops. This paper provides an updated review of their systematics, life history, reproduction, behaviour, predator–prey and parasite–host relationships, and population dynamics, with particul...
The impact of neonicotinoid insecticides on the health of bee pollinators is a topic of intensive research and considerable current debate [1]. As insecticides, certain neonicotinoids, i.e., N-nitroguanidine compounds such as imidacloprid and thiamethoxam, are as intrinsically toxic to bees as to the insect pests they target. However, this is not the case for all neonicotinoids, with honeybees ...
Biological control is a very safe and effective method for the management of pests. In this study, Coccinella undecimpunctata (Reiche) adults were used in Aphid gossypii population. The total mean reduction percentage A. individuals recorded 67.8, 74.7 and 85.26 % at three different levels release treatment 1, 3 5 adult predators/plants respectively. Also, results showed that releasing C. und...
BACKGROUND Substantial honey bee colony losses have occurred periodically in the last decades. The drivers for these losses are not fully understood. The influence of pests and pathogens are beyond dispute, but in addition, chronic exposure to sublethal concentrations of pesticides has been suggested to affect the performance of honey bee colonies. This study aims to elucidate the potential eff...
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