Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Master → Botswana → Identification of mongongo (schinziophyton rautanenii) and morama (tylosema esculentum) insect pests and their natural enemies in Botswana.

Botswana University of Agriculture and Natural Resources (BUANR) 2020

Identification of mongongo (schinziophyton rautanenii) and morama (tylosema esculentum) insect pests and their natural enemies in Botswana.

Bagai, Kholwane

Titre : Identification of mongongo (schinziophyton rautanenii) and morama (tylosema esculentum) insect pests and their natural enemies in Botswana.

Auteur : Bagai, Kholwane

Université de soutenance : Botswana University of Agriculture and Natural Resources (BUANR) Grade : Master of Science Degree in Crop Science (Crop Protection) 2020

Résumé
The study was conducted at the Botswana University of Agriculture and Natural Resources (BUAN) Sebele, Gaborone. Sampling sites for this study was done in Kweneng district and Okavango district, and the experiments were conducted in the entomology lab during 2016/2017 season. Farmer’s knowledge on insect pests of morama and mongongo were investigated by interviewing 150 users of morama in Kweneng district and 150 users of mongongo in Okavango. Most of the farmers gathered mongongo and morama in the forest and stored them in woven polypropylene bags. They considered insect, wild and domesticated animals as a major constraint of mongongo and morama production. Beetles and caterpillars were identified as the major insect pests of the fruits and seeds in storage. None of the farmers use pesticides to control these pests. Majority of the respondents do not use any pest control. Eleven different insect species were identified to be hosted by mongongo tree in the forest and two insect species in storage (Lasioderma serricorne and Plodia interpuctella). Six insect species were hosted by morama in the forest and two insect species in storage (Plodia interpuctella and Tribolium confosum). There was no significant difference (P>0.05) between storage methods (jute bag, woven polypropylene bag and bottle container) on managing the infestation insect population. Natural enemies (B. hebetor) has significantly effect (P .interpuctella)

Présentation

Version intégrale (2,6 Mb)

Page publiée le 6 janvier 2022