Efeito do extracto de folhas de seringueira - Melia azedarch L. no controlo das lagartas de couve e no rendimento na cultura de repolho Brassica oleracea L.

Abstract

In order to evaluate the effect of rubber tree leaf extract (Melia azedarach L.) on the control of cabbage caterpillars and on the yield of cabbage (Brassica oleracea L.) a study was carried out in the Experimental field of the Faculty of Agronomy and Forestry . Four replicates and 6 treatments were established in the plots. The treatments were as follows: 50 g/l (T1), 100 g/l (T2), 150 g/l (T3), 200 g/l (T4) of rubber tree, Cypernetrine at a dose of 1 ml/l 20 @ EC (T5) and control (t6). Weekly applications of rubber tree leaf extract and 4 applications of Cypermethrin were made. Based on the single contrast method, the test results showed that Cypermethrin had the best effect on the control of cabbage caterpillars compared to the other treatments. However, there were no significant differences between the rubber tree leaf extract and the control. The pests found were: cabbage borer (Hellula undalis Fr.), American worm (Helicoverpa armigera), cabbage worm (Crocidolomia binotalis zell.) and slugs. Artur: Virgulino Nhate Abstract: This work is part of the set of works that have been done at the Faculty of Agronomy and Forestry as a way to finish the course. The work is authored by Virgulino Nhate, a student who completed the fifth year at the Faculty indicated above in the field of Rural Engineering. Finance, Department of Population and Social Development (DPDS) in collaboration with the Faculty of Agronomy and Forestry Engineering (FAEF) and the International Food Policy Research Institute (IFPRI); and its title is: Comparison of data from two sources (Surveys and Geographic Information Systems) and analysis of the influence of distance to services (such as doctors, nurses, banks) or infrastructure (roads) on the well-being of households rural areas of Mozambique. Otrabalho correlates data from different sources to see their relationships and analyzes the effect of the same data on rural family welfare and households in Mozambique. The data sources used in the work are the Geographic Information System (GIS), which determines the distances to different services and infrastructure from the villages, data from the Household Survey on living and housing conditions, which determine different levels of well-being of households and distances to services and infrastructure in rural areas of Mozambique (community data) and data from Consolidated Informatio Systems (CIS), which analyzes factors affecting populations at district level . other Effect of rubber tree leaf extract (Melia azedarach L.) on the control of cabbage larvae and on the yield in the cabbage crop (Brassica oleracea L.)