questions: asking about the control measure for caterpillar in lemon. 
 answers: advised to spray rocket @ 1.5 ml/lit water or profex super @ 1.5 ml/lit water,2-3 sprays at 5-6 days interval.for growth and production,spray npk @ 10 gm/lit water and citrus special of multiplex @ 2 gm/lit water.