Tree stage:
4/16/97 half inch green
4/23/97 tight cluster
4/30/97 open cluster
5/5/97 pink
5/8/97 King bloom
5/12/97 bloom
5/18/97 petal fall

Visual Observations:
4/23/97
No pear thrips seen
No rosy apple aphids seen
No hatched European red mites seen

4/30/97
First European red mite nymph spotted
Apple blotch leafminer eggs seen – in high numbers in some locations
Only a few pear thrips seen
First European apple sawfly captured on TPB trap
No visible scab lesions yet on unsprayed trees

5/5/97
First apple scab lesion found on unsprayed tree, probably from April 17-19 infection period

5/8/97
First white apple leafhopper nymph observed
Rosy apple aphids found on Cortlands – 4 RAA colonies in one block
First mite predator seen: Z. mali

5/15/97
First A. fallacis mite predator seen
First apple blotch leafminer mine seen
First apple scab lesions observed in sprayed orchard

5/27/97
First plum curculio egg laying scar, found in ‘Liberty’ apple
First European apple sawfly scar found

5/29/97
First apple blotch leafminer tissue feeding mine found
First European red mite summer egg found (found quite a few so probably started laying a few days ago)

5/30/97
First cedar apple rust lesion seen

6/11/97
First apple blotch leafminer pupa

6/17/97
First adult white apple leafhoppers

6/24/97
First empty pupal case of apple blotch leafminer – adult moths emerging
First sighting of bronzing due to European red mite feeding

6/30/97
First apple blotch leafminer parasite adult emerged – empty cocoon of Pholetesor ornigis

7/3/97
First apple maggot fly caught on red sticky sphere in commercial orchard (unbaited sphere)
First rose leafhopper nymphs observed

7/5/97
First San Jose scale damaged fruit

7/7/97
First mines of second generation apple blotch leafminer

8/5/97
Second generation white apple leafhopper nymph found