000			02312nam a2200217Ia 4500
008			220216s9999 xx 000 0 und d
100			_aViswanathan P K
245		0	_aCrop loss in rubber due to abnormal leaf fall: An analysis on the economic feasibility of plant protection measures in India
260			_bJournal of Plant Protection Research _c2005
300			_a235-248
520			_aThe paper attempts to assess the extent of crop loss in rubber plantations in India, measured in terms of loss in latex and timber output and thereby to examine the comparative economics of plant protection measures against Phytophthora spp. induced abnormal leaf fall (ALF). The specific objectives were: a) to examine the extent of loss in latex and timber output in unsprayed plots vis-a-vis sprayed plots across prominent rubber clones; b) estimate the value of loss in latex and timber output across clones between sprayed and unsprayed plots; c) examine the comparative economics of plant protection measures in terms of the incremental costs and the incremental returns from sprayed plots across clones; and d) reflect upon the policy imperatives with respect to region-specific Research and Development (R&D) interventions on plant protection measures in India. The study brings out significant clonal differences in loss of latex and timber output in the absence of prophylactic spraying against ALF. The observed clonal differences with respect to feasibilty of plant disease control measures indicate the need for region and clone-specific recommendations for plant protection measures in India instead of the currently followed unilateral prescription with due allowance to the costs and potential benefit accured from the control measures. The study also highlight the need for evolving interventions and agro-management/plant protection measures for minimising the incidence of tree casualty in rubber plantation, as it amounts to loss of potential income from latex and timber from rubber plantations in India, dominated by the smallholder sector.
650			_aAbnormal leaf fall
650			_aCrop loss
650			_aDiscounted cash flow analysis
650			_aLatex yield
650			_aPhytophthora spp
650			_aTimber yield
700			_aGeorge K T
700			_aJacob C K
942			_cJS
999			_c56545 _d56545