Great link on apple tree maintenance

http://cecommerce.uwex.edu/pdfs/A3565.PDF
I've been looking for something like this; besides pruning, it covers the use of insect traps to control insect damage and/or to know when to spray (instead of preventative spraying.) Most .edu web sites mention how good pest management works but they don't give you any details.
Best regards, Bob
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Hi again Bob, I have used pheromone traps in the past but found them expensive. I now use sticky ball traps. I have not found them that useful for monitoring bug types since the traps are a collection of mangled shapes, which makes identification less than perfect. However, the sticky balls do help to control the bugs. I have seen these types of traps in many orchards, and maybe it works for them to help monitor what's in their fields. My feeling is that by the time you see the bugs, it may be too late to do anything about it. Also, I spray fungicides, and it's pretty hard to monitor those types of problems. I don't overdo the spraying thing. Even if I wanted to, I cannot find the time or opportunities (must have a calm day with no rain in the near forecast) to do it often. I did miss a spraying on just one tree (a Cox's Orange Pippen) and coincidentally or not, that tree is showing signs of distress. For lack of a better plan, I try to do a combined fungicide and pesticide spray about every three weeks during the growing season, with dormant oil in the early spring. It seems like when I let that three week window get extended, I'm in trouble, some way or another.
Sherwin Dubren
zxcvbob wrote:

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