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Open AccessReview

Application of Trap Cropping as Companion Plants for the Management of Agricultural Pests: A Review

State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Authors to whom correspondence should be addressed.
Insects 2018, 9(4), 128;
Received: 20 August 2018 / Revised: 20 September 2018 / Accepted: 21 September 2018 / Published: 25 September 2018
(This article belongs to the Special Issue Insect Monitoring and Trapping in Agricultural Systems)
Companion planting is a well-known strategy to manage insect pests and support a natural enemy population through vegetative diversification. Trap cropping is one such type of special companion planting strategy that is traditionally used for insect pest management through vegetative diversification used to attract insect pests away from the main crops during a critical time period by providing them an alternative preferred choice. Trap crops not only attract the insects for feeding and oviposition, but also act as a sink for any pathogen that may be a vector. Considerable research has been conducted on different trap crops as companion plant species to develop improved pest management strategies. Despite this, little consensus exists regarding optimal trap cropping systems for diverse pest management situations. An advantage of trap cropping over an artificially released natural enemy-based biological control could be an attractive remedy for natural enemies in cropping systems. Besides, many trap crop species can conserve natural enemies. This secondary effect of attracting natural enemies may be an advantage compared to the conventional means of pest control. However, this additional consideration requires a more knowledge-intensive background to designing an effective trap cropping system. We have provided information based on different trap crops as companion plant, their functions and an updated list of trap cropping applications to attract insect pests and natural enemies that should be proven as helpful in future trap cropping endeavors. View Full-Text
Keywords: cultural control; biological-based control; integrated pest management; natural enemy cultural control; biological-based control; integrated pest management; natural enemy
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Sarkar, S.C.; Wang, E.; Wu, S.; Lei, Z. Application of Trap Cropping as Companion Plants for the Management of Agricultural Pests: A Review. Insects 2018, 9, 128.

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