Contribution a l'etude de l'écologie et de la biologie des homopteres ravageurs des arbres fruitiers et autres plantes I. -Comparison de l'évolution des populations d'Aleurodicus dispersus Russell (Hom.: Aleyrodidae) sur agrumes et avocatier en République du Congo
Aleurodicus dispersus Russell, a whitefly of neotropical origin, was introduced into Congo in the early '90. Since 1995, A. dispersus has developped the important populations on Citrus and avocado trees. The study of the population dynamic of this whitefly on Citrus and avocado trees indicates that the pest exhibits only four and three generation a year on Citrus and avocado trees respectively. Besides, an increase of the population of A. dispersus occurs in the dry season. However, rainfall reduces the insect population to a very low level. Its abundance indicates that during the rainy season, A. dispersus appears ealier underpinned for the first time and its significance assessed.
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| Format: | biblioteca |
| Language: | spa |
| Published: |
2002
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| Subjects: | PERSEA AMERICANA, CITRUS, ALEURODICUS DISPERSUS, PLAGAS DE PLANTAS, DINAMICA DE POBLACIONES, FACTORES CLIMATICOS, CONGO, |
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