Impact of the introduced parasitoid<i>Peristenus digoneutis</i>(Hymenoptera: Braconidae) on tarnished plant bug (Hemiptera: Miridae) infesting strawberries in northwestern New Jersey, USA

Day, William H. E.; Hoelmer, Kim A.

doi:10.1080/09583157.2012.700695

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…Prior to the establishment of P. digoneutis, parasitism rates by P. pallipes often reached 25% (Carignan et al 2007). More recently, parasitism rates of L. lineolaris in New Jersey strawberry averaged 30%, with up to 98% of parasitism events by P. digoneutis (Day and Hoelmer 2012). More recently, parasitism rates of L. lineolaris in New Jersey strawberry averaged 30%, with up to 98% of parasitism events by P. digoneutis (Day and Hoelmer 2012).…”

Section: Discussionmentioning

confidence: 99%

“…The introduction of P. digoneutis by the USDA is a well-studied classical biological control program (Day et al 1990, 2008, Day 1996, Lachance et al 2001, Tilmon and Hoffmann 2003, Carignan et al 2007, Day and Hoelmer 2012, and parasitism rates achieved by P. digoneutis in the field are well above those recorded for native parasitoids (Day 1996). The primary pest of strawberry, L. lineolaris, is an economically important pest of many high-value fruit and vegetable crops and also field crops throughout the United States.…”

Section: Study Area and Sitesmentioning

confidence: 99%

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Landscape simplification reduces classical biological control and crop yield

Grab

Danforth

Poveda

et al. 2018

Ecological Applications

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Agricultural intensification resulting in the simplification of agricultural landscapes is known to negatively impact the delivery of key ecosystem services such as the biological control of crop pests. Both conservation and classical biological control may be influenced by the landscape context in which they are deployed; yet studies examining the role of landscape structure in the establishment and success of introduced natural enemies and their interactions with native communities are lacking. In this study, we investigated the relationship between landscape simplification, classical and conservation biological control services and importantly, the outcome of these interactions for crop yield. We showed that agricultural simplification at the landscape scale is associated with an overall reduction in parasitism rates of crop pests. Additionally, only introduced parasitoids were identified, and no native parasitoids were found in crop habitat, irrespective of agricultural landscape simplification. Pest densities in the crop were lower in landscapes with greater proportions of semi-natural habitats. Furthermore, farms with less semi-natural cover in the landscape and consequently, higher pest numbers, had lower yields than farms in less agriculturally dominated landscapes. Our study demonstrates the importance of landscape scale agricultural simplification in mediating the success of biological control programs and highlights the potential risks to native natural enemies in classical biological control programs against native insects. Our results represent an important contribution to an understanding of the landscape-mediated impacts on crop yield that will be essential to implementing effective policies that simultaneously conserve biodiversity and ecosystem services.

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Section: Discussionmentioning

confidence: 99%