| Popis: |
field trials were conducted in two different Governorates, Qualyoubeya (Quaha) and Sharqueya (Majazer) to study the effectiveness of different types of cropping system of okra (Hibiscus esculentus L.) against the major insect pests in order to provide comparative measures of these pests and their associated predators. The study consisted of three cropping system and control replicated each three times.Data obtained recorded that the piercing sucking pests, Tetranych usurticae Koch, Aphis gossypii Glover, Bemisia tabaci (Gennadius) were found. In addition, the bollworms, Heliothis armigera (Hubner) and Earias insulana Boisduval and their associated predators, Chrysoperla carnea (Stephens) and Coccinella undecimpunctata Linnaeus were present on okra plants. The results revealed that okra, Hibiscus esculentus L. intercropped with maize, Zea maysL. in alternating rows (1:1), treatment A,proved to be the most efficient cropping system,where the lowest infestation of different pestscompared to the control (the monoculture system) and the other cropping systemin the two governorates. Moreover, treatment (A)recorded the best pod yield of 78.9 & 75.9 kg / karat in Majazer and Quaha, respectively |
