2 Promote good air movement in the orchard for better air circulation and faster drying by planting rows in direction of prevailing winds. This is very important for fire blight control. To confirm the need for prebloom treatment of pear psylla, use a beating tray early in the morning to sample populations of adults. In winter or very early spring, collect and open pear buds to determine the relative density of pear rust mite in the orchard. Later in the spring, sample 25 fruit clusters for pear rust mite.
Treatment is advised when five or more clusters are infested.
In spring, examine leaves for pear sawfly larva. Re-inspect in late July or August for the summer generation. Eradicate perennial weeds and reduce the soil weed seed bank the year prior to planting by using herbicides, cultivation, and cover crops. 7 X Establish a non-competitive grass between tree rows prior to planting. 6 X Use a herbicide to establish planting strips in established sod.