2003 – Current Pest Report – Apple Blotch leafminer

(set up traps at silver tip)

Tree stage for McIntosh
green tip 4/14/03
half inch green 4/21/03
tight cluster 4/28/03
full pink 5/5/03
bloom 5/9/03
petal fall 5/18/03

– See leafminer eggs on underside of leaves 5/5/03
– See hatched leafminer eggs in Newport on 5/8/03 (and trees here are only at Pink)
-See adults still in trees on 5/19/03


Apple blotch leafminer trap captures

The average number of adult leafminers caught per trap in each monitored block. The averages are cummulative.
Threshold = 8/trap by tight cluster or 21/trap by pink

 

orchard 4/16/03 4/21/03 4/28/03 5/5/03 5/12/03
East Farm 0/ 3 traps 10/ 3 traps 29/3 traps* 25/ 3 traps
Lamore 0/ 4 traps
Steere 0/ 3 traps 0/ 5 traps 18/ 5 traps
Jaswell 0/ 4 traps 10/ 4 traps
G. Smith 0/ 3 traps 12/ 4 traps
D. Smith 1/3 traps 7/ 3 traps 110/ 4 traps*
Phillips 0/ 2 traps 66/ 5 traps
B. Smith 0/ 4 traps 1/ 3 traps
Elwood 1/4 traps
Knight 0/ 4 traps

 

* Above threshold

Leafminer eggs. Started seeing eggs on 5/5/03
I do not have a true threshold, but if I find more than a couple per 25 clusters I get nervous.