Occurrence and management of two emerging soil-dwelling pests ravaging cabbage and onions in Kenya.

Autor: Ouma LO; International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya.; Department of Plant Science and Crop Protection, University of Nairobi, P. O. Box 29053 - 00625, Kangemi, Kenya., Muthomi JW; Department of Plant Science and Crop Protection, University of Nairobi, P. O. Box 29053 - 00625, Kangemi, Kenya., Kimenju JW; Department of Plant Science and Crop Protection, University of Nairobi, P. O. Box 29053 - 00625, Kangemi, Kenya., Beesigamukama D; International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya. dbeesigamukama@icipe.org., Subramanian S; International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya., Khamis FM; International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya., Tanga CM; International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya. ctanga@icipe.org.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2023 Nov 03; Vol. 13 (1), pp. 18975. Date of Electronic Publication: 2023 Nov 03.
DOI: 10.1038/s41598-023-46190-0
Abstrakt: Cabbage and Onion production in sub-Saharan Africa face numerous pest constraints that needs to be overcome to feed the rapidly growing population. This study aimed to establish the occurrence, incidence, and severity of soil-dwelling pests of cabbage and onions, and current management practices in five Counties of Kenya. Our findings revealed that most farmers grew hybrid vegetables on a small scale, which were highly dominated by various pest species (Delia platura, Maladera sp., and Agriotes sp. for cabbage and Atherigona orientalis and Urophorus humeralis for onion. The occurrence, incidence and severity of the various pest species on both crops varied considerably. Over 95% of the farmers relied on synthetic insecticides, which were applied weekly or bimonthly with limited success. Our findings demonstrate that invasive and polyphagous A. orientalis and D. platura were the most devastating pests of onion and cabbage without effective control options. Therefore, effective, sustainable, and affordable management strategies are required to control the spread of these pests to other crops in the region.
(© 2023. The Author(s).)
Databáze: MEDLINE
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