bugs in fruit trees - Knowledgebase Question

N.Y., Ne
Avatar for lilyhtay
Question by lilyhtay
August 22, 2009
The applie tree (Washington apple type) had bugs on the leaves which cannot be seen but the leaves become distorted and so are the applies so we never was able to eat any since we moveed in past 12 yrs. only the first year! now I am seeing the smae in the 2 pear trees this year - the leaves are abit distorted and the fruits have black sport or they are distroted a bit, not as bad as the apples >

Answer from NGA
August 22, 2009
Your apples and pears probably have a disease called apple scab, which is one of the most common diseases of apple and pears. Is caused by the fungus Venturia inaequalis. Management of apple scab involves a combination of steps: planting resistant varieties, raking and destroying fallen leaves infected with the scab fungus, pruning apple trees in late winter to "open" the canopy, and using fungicide sprays. The most important time to apply fungicides for scab control is from April to early June. Since many fungicides are protectants, it is important to maintain adequate coverage of expanding leaves to significantly reduce spring infections. Three or four sprays every 7 to 10 days may be needed to provide this protection. There are a number of general purpose fruit sprays that contain fungicides effective against apple scab in home orchards. Be sure to apply according to label directions. Good luck with your trees.

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