منابع مشابه
Natural Enemies Delay Insect Resistance to Bt Crops
We investigated whether development of resistance to a Bt crop in the presence of a natural enemy would be slower than without the natural enemy and whether biological control, in conjunction with a Bt crop, could effectively suppress the pest population. Additionally, we investigated whether insecticide-sprayed refuges of non-Bt crops would delay or accelerate resistance to the Bt crop. We use...
متن کاملNatural Insect Enemies for the Control of Chromolaena Odorata
Chromolaena odorata (L.) King & Robinson (Asteraceae: Eupatorieae), a shrub of neotropical origin, is a primary threat to the conservation of biodiversity, and to pastoral and crop agriculture and forestry in the subtropical regions of South Africa. It invades much of the sugarcane growing areas in KwaZulu-Natal and thus impacts negatively on the South African sugar industry. The plant presents...
متن کاملSpillover edge effects: the dispersal of agriculturally subsidized insect natural enemies into adjacent natural habitats.
The cross-edge spillover of subsidized predators from anthropogenic to natural habitats is an important process affecting wildlife, especially bird, populations in fragmented landscapes. However, the importance of the spillover of insect natural enemies from agricultural to natural habitats is unknown, despite the abundance of studies examining movement in the opposite direction. Here, we synth...
متن کاملConservation of natural enemies in cotton: role of insect growth regulators in management of Bemisia tabaci
Field studies were conducted from 1997 to 1999 to contrast the effects of two insect growth regulators (IGRs) and conventional insecticides on natural enemy conservation in cotton within the context of alternative management strategies for Bemisia tabaci (Gennadius). Compared with an untreated control, insecticide regimes based on the initial use of the IGR buprofezin or pyriproxyfen reduced de...
متن کاملInfluence of habitat and landscape perenniality on insect natural enemies in three candidate biofuel crops
1049-9644/$ see front matter 2011 Elsevier Inc. A doi:10.1016/j.biocontrol.2011.06.014 ⇑ Corresponding author. Fax: +1 517 353 5598. E-mail address: [email protected] (B.P. Werling). Cultivation of biofuel crops could change agricultural landscapes, affecting natural enemies at multiple scales. We sampled five natural enemy families with sticky cards in three model biofuel habitats (corn, switch...
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ژورنال
عنوان ژورنال: The Florida Entomologist
سال: 1997
ISSN: 0015-4040
DOI: 10.2307/3495569