C. Segovia
During two years (1994–96) research was developed for natural pest control on banana Musa AAB (Musaceae) in Tuxtepec, Oaxaca, México (96° 17' N and 19° 06' W) by using stem traps and substances obtained from plant species with toxic properties against banana black weevil Cosmopolites sordidus G. (Coleoptera: Curculionidae) and phytopatogenic nematodes of the genera Meloidogyne, Radopholus and Pratylenchus to reduce the use of pesticides and its environmental impact. They were tested against black weevil: banana stem traps alone (30 cm pieces cut lengthwise by halves), traps and 1% infusion aspersion of hairy eggplant Solanum mammosum L. (Solanaceae), an insecticide (Counter 5% G) and a control. The traps alone were as effective as the insecticide in reducing 56.3% of the insect infestation. Later they were tested against soil nematodes, cempazuchil Tagetes sp. (Compositae) sown ground, dried and powdered cempazuchil plants (20 g per plant), acuyo Piper auritum H.B.K. (Piperaceae) and hairy eggplant dry leaves, a chemical control (Carbofuran 5% G) and a control. The cempazuchil sown ground was as effective as the chemical control by reducing 71.04% of the nematode population. Finally infusions were evaluated to 1% of the leaves of 18 plant species against black weevil applied over small banana stem traps. The acuyo and nacaste Enterolobium cyclocarpum L. (Leguminoseae) resulted attractive because they caught 537.5 and 283.3% more, black weevils respectively than the control, on the other hand, the papaya Carica papaya L. (Caricaceae) and the guaje Leucaena esculenta L. (Leguminoseae) were repellents because, they only caught 11.62 and 19.56% of black weevils respectively.
Segovia, C. (1998). BANANA NATURAL PEST CONTROL IN THE RAIN TROPIC OF MEXICO. Acta Hortic. 490, 407-414
DOI: 10.17660/ActaHortic.1998.490.41
Cosmopolites sordidus, nematodes, plant extracts, stem traps

Acta Horticulturae