Flowering alyssum (Lobularia maritima) promote arthropod diversity and biological control of Myzus persicae |
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| Institution: | 1. Bio-Protection Research Centre, Lincoln University, P.O.Box 85084, Lincoln 7647, New Zealand;2. Department of Entomology, Agriculture and Forestry University, Bharatpur 44200, Nepal;3. Entomology Division, Nepal Agricultural Research Council, Khumaltar 44700, Nepal;1. Departamento de Ciencias Biológicas y Biodiversidad, Universidad de Los Lagos, Av. Fuschlöcher #1305, Osorno, Chile;2. Citizen Science Program Moscas Florícolas de Chile, Arizona #4067a, Recoleta, Santiago de Chile;3. Centro de Estudios en Ecología Espacial y Medio Ambiente – Ecogeografía, Av. José Miguel Claro #2550, Providencia, Santiago, Chile;1. Organization for Promotion of Tenure Track, University of Miyazaki, Miyazaki, Japan;2. Entomology Research Museum, Department of Entomology, University of California, Riverside, CA 92521, USA;3. Okinawa Prefectural Agricultural Research Center, Makabe, Itoman, Okinawa, Japan;1. Department of Plant Protection, College of Agriculture, University of Zanjan, Iran;2. Postgraduate Student in Entomology, Department of Plant Protection, College of Agriculture, University of Zanjan, Iran;3. Department of Soil Science, College of Agriculture, University of Zanjan, Iran;4. Department of Agronomy and Plant Breeding, College of Agriculture, University of Zanjan, Iran;1. Anhui Province Key Laboratory of Integrated Pest Management on Crops, Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, College of Plant Protection, Anhui Agricultural University, Hefei 230036, China;2. People’s Government of Fenshui Town, Tonglu County, Hangzhou, Zhejiang 311519, China |
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| Abstract: | Radish, Raphanus sativus is an important vegetable crop worldwide. It is the second most important vegetable after cabbage and cauliflower in winter (January to March) in Nepal. This crop is damaged by various herbivores such as the green peach aphid, Myzus persicae, the soybean hairy caterpillar, Spilarctia casigneta and the flea beetle, Monolepta signata. Prophylactic pesticide use is a part of the common pest management practice in Nepal. The candidate floral plant, alyssum, Lobularia maritima, was deployed in a radish field to improve pest biological control. Beneficial arthropods trapped such as Syrphidae, Coccinellidae, Carabidae, Staphylinidae, Formicidae, Lycosidae, Apidae and Ichneumonidae were significantly more abundant in flowering alyssum plots than the control (non-flowering) plots. Flowering alyssum in radish fields significantly increases the population of observed syrphids (larva and adult). Similarly observed ladybirds was slightly higher in flowering plot compared with control plot however that was not significant. These beneficial predators potentially increase the biological control of M. persicae. These results provide evidence of the alyssum’s ability to increase the abundance of predators and support the suppression of M. persicae in radishes. This study is useful in developing an integrated pest management protocol by integrating flowering strips in radish fields. Habitat manipulation in radish fields by maintaining flower strips can improve pest biological control and support the provision of multiple ecosystem services that restore diminished ecosystem functions in agriculture. |
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| Keywords: | Alyssum Seven-spot ladybird Green peach aphid Radish Nepal |
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