Desert Locust Invasion in Uganda: Effects on Household Food Consumption and Effective Control Interventions

Bernard Barasa (), Cosmas Walyaula Watsusi, Paul Makoba Gudoyi, Noah Lutaaya, Loy Turyabanawe Gumisiriza and John Paul Magaya
Additional contact information
Bernard Barasa: Department of Geography, Kyambogo University, Kyambogo P.O. Box 1, Uganda
Cosmas Walyaula Watsusi: Department of Geography, Kyambogo University, Kyambogo P.O. Box 1, Uganda
Paul Makoba Gudoyi: Department of Geography, Kyambogo University, Kyambogo P.O. Box 1, Uganda
Noah Lutaaya: Department of Geography, Kyambogo University, Kyambogo P.O. Box 1, Uganda
Loy Turyabanawe Gumisiriza: Department of Geography, Kyambogo University, Kyambogo P.O. Box 1, Uganda
John Paul Magaya: Department of Biological Sciences, Kyambogo University, Kyambogo P.O. Box 1, Uganda

Sustainability, 2023, vol. 15, issue 19, 1-15

Abstract: Desert locust invasions are still a danger to the well-being of natural and man-made ecosystems in the tropics. This study examined desert locust invasion duration, survival probability, and control as well as their effects on household food item consumption in the drylands of Uganda. Primary socioeconomic data were collected using various methods (household survey, focus group discussion, and key informant interviews) in May/June 2020 to document the perceptions of households regarding locusts. Our findings reveal that the most significant drivers of desert locust invasions were rainfall, surface temperature, strong winds, soil moisture, soil type, and vegetation type ( p ≤ 0.05). The locusts lasted between 3 and 4 weeks. The survival probability of locusts beyond 1 week was 90%. There were significant differences in the day’s food items consumed before and after the locust invasion, except for ground nuts and cashew nuts ( p ≤ 0.05). The number of days per month the food items were consumed decreased after the locust invasion. The most effective locust control measure undertaken was the use of ground and aerial pesticide spraying. The major sources of desert locust control information were radio and television. This information is a prerequisite in desert locust invasion preparedness, response, and recovery but can also strengthen sustainable green economy efforts, especially in fragile semi-arid ecosystems.

Keywords: desert locusts; drivers; duration; household food consumption; locust control (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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