Seasonal impact and influence of mango stem borer on rejuvenation of old mango orchard.
Jadhav S. B., Patil R. S., Dhumal S. S., Nale V. N.
Author Affiliation: MPKV, Rahuri, Dist: Ahmednagar, Maharashtra - 413 722, India.
International Journal of Agriculture Innovations and Research 4 : 91-96
Abstract : Top working technique helps to rejuvenate the old unproductive mango orchards into productive one. Forty years old local mango seedlings were beheaded at 2 m height from ground level at monthly interval and newly emerged shoots were grafted with three improved mango varieties. Significantly highest graft success was recorded in May beheading and grafted in August (84.68%) while, it was the least in September beheading and December grafting (24.79%). Amongst the varieties used as scion for grafting, cv. Kesar showed significantly higher grafting success (61.93%). The significantly highest graft survival was noticed by the beheaded trees in November followed by successive grafting in February (38.46%) while, the significantly least graft survival was observed for trees beheaded in March followed by successive grafting in June (9.21%). Most severe incidence of mango stem borer was noticed during summer to rainy season (25.33 to 74.66%) while, the least during winter season (4.17 to 12.00%). Considering the mortality, beheading of mango tree for top working is only recommended during, November followed by wedge grafting with scion cv. Kesar during February.