EFFEC1ENCY OF FUMIGATION WITH METHYL BROMIDE AGAINST THE MANGO BUD MITE ACER1A MANGIFERAE AND FUSARIUM MON/LIFORMEINFESTING MANGO TREES

NAKHLA, JOZEAF  M.; EL-SHERIF, EBTISAM M.; ISKANDER, NABEL G.; IBRAHIM, SOFEE M.

doi:10.21608/ejar.1993.455768

EFFEC1ENCY OF FUMIGATION WITH METHYL BROMIDE AGAINST THE MANGO BUD MITE ACER1A MANGIFERAE AND FUSARIUM MON/LIFORMEINFESTING MANGO TREES

Document Type : Original Article

Authors

¹ Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt

² Plant Pathology Research Institute, Agricultural Research Centre, Giza, Egypt.

10.21608/ejar.1993.455768

Abstract

The phenomenon of vegetative and floral malformation in old mango trees as well as in mango seedlings is now common in Egypt. Obvious relationship between mango malformation and the mango bud mite, Aceria mangiferae and the fungus Fusarium moniliforme was recorded. The aim of this work is to produce mango seedlings free from these pests by using mango twigs fumigated with methyl bromide under different conditions. The results revealed that the maximum mortality (100%) of mango bud mite could be obtained by fumigation with methyl bromide for 24h at the concentrations 12.9 , 9.0 and 7.0 mg / I under the controlled temperatures 10, 20 and 30^°C , respectively. If the period increased to 48 h, the concentration would be 10.3 , 7.7 and 7.7 mg/I at the previous temperatures , respectively . Maximum mortality (100%) after 24h exposure for the fungus was obtained with the concentrations 77.4 , 71.0 and 58.1 mg/I at the temperatures 10,20 and 30 ^°C , respectively. If this period increased to 48 h, the respective concentrations would be 71.0 , 64.6 and 51.6 mg/I.