Joe from Kane, Pa writes,
Would you recommend how often to spray apple trees that are only 2 years old?
To avoid undesired apple thinning delay use until at least 30 days after full bloom. If there is insect activity then you typically only need to retreat every 7-14 days. Be sure to wait at least 3 days between the last application of Sevin Concentrate and harvesting the apples.
Answer last updated on: 05/04/2015