Conservation Biological Control Using Selective Insecticides – a Valuable Tool for IPM T ⁎ Jorge B
Biological Control 126 (2018) 53–64 Contents lists available at ScienceDirect Biological Control journal homepage: www.elsevier.com/locate/ybcon Conservation biological control using selective insecticides – A valuable tool for IPM T ⁎ Jorge B. Torresa, , Adeney de F. Buenob a Departamento de Agronomia/Entomologia, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, Recife, PE 52171-900, Brazil b Embrapa Soja, Caixa Postal 231, Londrina, PR 86001-970, Brazil ARTICLE INFO ABSTRACT Keywords: Conservation biological control (CBC) has widely benefited from ecological practices that enhance both the crop Nontarget and its surrounding environment. However, use of insecticides, whether biological or synthetic compounds, is Pesticide often detrimental to natural enemies. By definition toxic to insects, insecticides may cause direct mortality of Physiological selectivity natural enemies, reduce food resources (prey/host), or disrupt behavioral and biological processes. Therefore, Ecological selectivity choosing a selective insecticide or selectively applying are important decisions for conserving natural enemies if Soybean insecticide is required. In situations where both insecticide and natural enemy do not share the same target pest, Cotton an additive outcome is expected and CBC can minimize pest outbreaks and resurgence. Given that new, selective insecticides are usually more expensive than older ones, using the former typically adds cost per treated area. Therefore, choosing a selective insecticide becomes a matter of benefits and costs, considering the cost compared to other available treatments and potential pest problems. Beyond the differential toxicity of selective in- secticides to natural enemy and target pest species, some human decisions may produce insecticide selectivity, including application of minimal effective rates, and spatiotemporal separation of nonselective insecticides and natural enemies.
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