The Effect of Spray Regimes on the Population Dynamics of Selected Field Pests and Their Effect on Grain Yield and Yield Components of Common Bean in Uganda
Charles Halerimana, Samuel Kyamanywa, Michael H. Otim · 2024
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Description
Beans feed much of Uganda, and a gang of insects feeds on beans. Charles Halerimana, Samuel Kyamanywa, and Michael Otim tracked that gang across two rainy seasons and three farming zones in a 2024 study. They asked when each pest peaks and which sprays actually protect the harvest.
Bean flies, aphids, leaf beetles, whiteflies, weevils, leafhoppers, thrips, and caterpillars all appeared, rising and falling with the crop's growth stage. Spray schedules strongly changed bean fly and leafhopper numbers but barely dented the rest. Only leafhoppers showed a clear negative link to grain yield. Yield itself swung significantly with spray regime, and its components moved together. The authors use the patterns to guide when spraying earns its cost, rather than spraying by calendar.
Catalog record
| CREATOR | Charles Halerimana, Samuel Kyamanywa, Michael H. Otim |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 23 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |