Prospects for microbial control of the fall armyworm Spodoptera frugiperda : a review
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REVIEW
Prospects for microbial control of the fall armyworm Spodoptera frugiperda: a review Jingfei Guo . Shengyong Wu . Feng Zhang . Chaolong Huang . Kanglai He . Dirk Babendreier . Zhenying Wang
Received: 2 January 2020 / Accepted: 16 June 2020 Ó International Organization for Biological Control (IOBC) 2020
Abstract The fall armyworm (FAW, Spodoptera frugiperda) is an important polyphagous insect pest in many crops. This highly invasive pest species originates from the Americas and recently spread rapidly across more than 100 countries worldwide. It poses a major threat to food security in a number of developing countries due to its rapid spread and distinctive ability to inflict widespread damage across multiple crops. Chemical insecticides are used as the main management strategy to control FAW in many parts of the world, particularly in the recently invaded areas in
Handling Editor: Nicolai Meyling J. Guo S. Wu C. Huang K. He Z. Wang (&) State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China e-mail: [email protected] F. Zhang MARA-CABI Joint Laboratory for Bio-Safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China C. Huang Engineering Research Center of Natural Enemy Insects/ Institute of Biological Control, Jilin Agricultural University, Changchun 130118, China D. Babendreier (&) CABI Switzerland, Rue des Grillons 1, 2800 Dele´mont, Switzerland e-mail: [email protected]
Africa and Asia. However, concerns over the adverse effects on environment and humans, and the development of resistance against insecticides have intensified efforts to develop alternatives that are effective and low-risk, while at the same time cost effective. Given that microbials are generally considered desirable options for pest management, this review compiles information on microbials in all phases of their development including entomopathogenic fungi, entomopathogenic nematodes, bacteria and baculoviruses, with a special focus on their efficacy against FAW. In addition, combinations of microbial agents and also mixtures with compatible insecticides for improved control of FAW are reviewed. The findings are discussed in light of improving management programs of FAW Keywords Spodoptera frugiperda Microbials Biological control Combined application
Introduction The fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), is a highly polyphagous pest of global relevance, and in particular threatening maize production systems worldwide. This pest could result in a maize yield reduction of up to 70% when maize plants are attacked during early stages (Ayala et al. 2013; Hruska 2019). The FAW is
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also causing significant damage to other crops, including cotton, rice, soybean, tomato, potato, onion, bean, cabbage, sorghum, as well as several grass species by feeding on diff
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