Question
The tree bloomed very well.  At the late stage of blooming, the blomming area turned brown.  I removed one area of tent caterpillars.  I sprayed something from the co - op.  It looks like leaves are trying to form.  I had the same problem last year.  the difference:  The caterpillars came a little earlier this year.  They attacked last year after some apples formed.  The tree produced no edible apples last year.  What can I do now?

Answer
Homer,

Healthy trees usually are not harmed by moderate tent caterpillar defoliation. The problem with fruit set last year may have been a lack or pollination or an unhealthy tree for other reasons. However, here's an article about treating these insects http://www.livingwithbugs.com/tent_cat.html that may be useful. Post a follow up if you have questions.

Jack DeAngelis
http://www.livingwithbugs.com