000			01157nam a2200241Ia 4500
008			220216s9999 xx 000 0 und d
100			_aMatthews G A
245		0	_aPesticide application equipments used in rubber
260			_bIndian Journal of Natural Rubber Research _c1992
300			_a6-Jan
520			_aTechniques for applying pesticides to rubber trees are reviewed. Projection of fungicide into the canopy of tall trees has required the use of thermal fogs applying aerosol particles generally smaller than 50 mew m in diameter. But applications need to be repeated to achieve adequate control. Maintenance of pathways by application of herbicides can be improved with knapsack sprayers by fitting a spray management valvie to provide a constant 1 bar pressure at the nozzle. There has also been limited use of hand-held spinning disc sprayers to apply 250 mew m droplets of herbicides.
650			_aFogging
650			_aFogging
650			_aFungicide
650			_aFungicide
650			_aHerbicides
650			_aHerbicides
650			_aHevea
650			_aHevea
650			_aSpraying
650			_aSpraying
942			_cAR
999			_c47111 _d47111