<![CDATA[Drone sprayer was an innovation used for effective and efficient pesticide application. Research on its effectiveness and efficiency for golden snail pest control was still limited. The purpose of this study was to compare the effectiveness and efficiency of drone sprayers and knapsack sprayers using molluscicides with the active ingredient Niclosamide 250 g/l, concentration of 3 ml/liter, dose of 500 liters/ha. against the population, the intensity of the golden snail attack. and yields and working time of the sprayer. The research was conducted in Balung Lor Village, Balung District, Jember Regency from August to October 2022. Data analysis on the effectiveness of the sprayer used the Mann-Whitney test. Population correlation with attack intensity, attack intensity correlation with harvested dry grain weight using Spearman correlation. The efficiency of the sprayer uses the Working Time equation according to Andremico. The results showed that the population of golden snails treated by the drone sprayer (2.30 ± 0.95) individuals per clump was lower than the knapsack sprayer population (2.96 ± 0.67) individuals per clump; attack intensity (10.96 ± 3.51)% lower than the knapsack sprayer (12.60 ± 2.93)%. The yields of the two treatments were not significantly different. Weight of grain harvested by Drone sprayer (53.54 ± 12.76) gram per clump, knapsack sprayer (53.90 ± 12.07) gram per clump. Drone sprayer working time efficiency was 0.17 hours/ha; knapsack sprayer was 11.57 hours/ha.]]>
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