Improved chemical protection of sorghum seed and seedlings from insect pests in Honduras
Insect pests are a major constraint to sorghum production in Southern Honduras. This study was conducted to compare the efficacy of insecticides for protecting sorghum seed and seedlings. The insecticide furathiocarb was tested as a seed treatment (Promet 400 CS) and as soil treatment (Deltanet 10G) at planting; terbufos (Counter 10G) and carbofuran (Furadan 10G) were tested as soil treatments, and kerosene as a seed treatment. Damage to the seed was principally caused by wireworms and ants, whereas damage to seedling foliage was caused by the fall armyworm, Spodoptera frugiperda. All insecticide treatments resulted in significantly better plant stands 20 days post-emergence than the untreated stands. The effectiveness of kerosene in protecting seed and seedlings was negligible. Furathiocarb seed treatment (50 g ai/kg seed) and granular terbufos provided significant control of all three insect pests; granular carbofuran did not protect the seed from removal by ants. Furathiocarb was as good as or better than the other, more toxic pesticides. Commercial application of furathiocarb to seed is suggested to benefit farmers who normally do not take precautions to protect sorghum seed and seedlings from insect attack.
| Main Authors: | , , , |
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| Format: | biblioteca |
| Language: | spa |
| Published: |
(Ene
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| Subjects: | SORGHUM BICOLOR, INSECTOS DANINOS, SEMILLAS, PLANTULAS, CONTROL QUIMICO, INSECTICIDAS, FURATIOCARB, TERBUFOS, CONTROL DE INSECTOS, HONDURAS, |
| Online Access: | http://hdl.handle.net/11554/9540 |
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