Biological Constraints in Tomato Production in the Western Highlands of Cameroon
1999
Fontem, DA. | Gumedzoe, MYD. | Nono-Womdim, R.
Tomato (Lycopersicon esculentum) production is handicapped by damage due to pests and pathogens. Farmers' fields in the western highlands of Cameroon were surveyed during 1993 to 1996 to identify biological constraints in production. Diseases and insect pests are the most important biological limitations in tomato production. Late blight caused by Phytophthora infestans and early blight caused by Alternaria solani are the most severe diseases, while the melon fruitfly (Dacus cucurbitae) is the most prevalent insect pest. Yield losses due to pest damage are high and reach 100 % when the crop is not treated in the wet season. Pest-resistant varieties are not available to farmers. Consequently, growers practise intensive pesticidal spray programmes to limit losses caused by pests and diseases. Results indicate the necessity for the adoption of integrated pest management strategies in tomato production in Cameroon.
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