Washing spruce, juniper and willow down occassionally with water will help control this pest. A miticide may be needed in severe cases. Pinyon Spindle Gall Midge adults will emerge and lay eggs at the base of new needles. Pinon should be inspected for this pest and treatments made if necessary. European Elm Scale egg hatch begins.
Crawlers move from stems to leaves.
Dripping of honeydew begins. Mountain Pine Beetle preventative sprays should be made before adults emerge. Pesticide sprays should be applied in the coolest part of the day to avoid burning. Damage to elm leaves by Elm Leaf Beetle will become evident. Week 5 After the tops of Tulips, daffodils, narcissus and other spring blooming bulbs have died back, these plants can be dug, divided and replanted to increase their numbers for next year.