Tree stage:
3/27/2000 – green tip
4/7/2000 – half inch green
4/14/2000 – tight cluster
5/1/2000 – pink
5/4/2000 – early bloom
5/8/2000 – early petal fall
5/10/2000 – petal fall

European apple sawfly trap captures

5/4/2000 – Caught first European apple sawfly in white sticky trap
5/11/2000 – See European apple sawfly egg laying scar on fruit

Average number of adult European apple sawfly adults caught on white sticky traps in each monitored block. Averages are cummulative.
**Threshold = 9/trap if no prebloom insecticide; 5/ trap if applied prebloom insecticide**

* Above threshold