During the bloom season examine flower clusters for pear psylla, mites, caterpillars, and thrips to determine your management needs. Also look for mealybugs and boxelder bug eggs and adults if they are a problem in your orchard.
Record your results (example form— ).
How to Sample
From 50 trees collect one flower cluster from the treetop and one at eye level for a total of 100 clusters. Examine flower clusters with a 10 to 14X hand lens for these pests:
- Pear psylla nymphs and eggs
- European red mite eggs and adults
- Pear rust mite.
Caterpillars on leaves and blossoms
- Obliquebanded leafroller
- Miscellaneous caterpillars (e.g., green fruitworm, fruittree leafroller)
- Western flower thrips (Tap clusters on hand and look for dislodged thrips.)
- Mealybugs (grape, obscure)
- Western boxelder bug (eggs, nymphs, and adults)
|European red mite||
|Pear rust mite||
|Western flower thrips||
|Mealybug nymphs (grape, obscure)||
|Western boxelder bug||