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Search Results for "delayed dormant"

San Jose Scale Management

Tuesday May 17, 2016 10:00am
San Jose scale is a relatively easy pest to control, but a dangerous one to leave uncontrolled.  After a few years of infestation, limbs and even entire trees can be killed if heavily attacked, and high percentages of the fruit can be infested. Large trees are most often associated with scale problems, because of the suitable habitat they provide and the difficulty of obtaining thorough spray coverage.  However, young trees can also develop a scale problem surprisingly quickly.

Delayed Dormant Sprays

Friday February 19, 2016 2:38pm
Dormant sprays are important for management of a wide range of pests including European red mite, woolly apple aphid, rosy and green apple aphids, and San Jose Scale. Most of these are easily controlled using a variety of materials, but if you are using oils, remember that good coverage is essential because they work by covering the egg stage and preventing respiration.

Delayed Dormant Sprays for Leafrollers

Friday February 19, 2016 2:38pm
Pandemis leafroller (PLR) and oblique-banded leafroller (OBLR) have different phenologies which are well documented on DAS. Delayed dormant sprays can work well for PLR, but are generally too early in the season for efficacy against larvae of OBLR.

Woolly Apple Aphid

Friday February 19, 2016 2:38pm
Woolly apple aphid (WAA) has become more common over the past few years and is a quarantine threat for export to certain countries. WAA can be found feeding on the roots as well as occurring in the tree canopy where it can appear as a white cottony mass on pruning scars or shoots.
Decision Aid System v. 6.3.35.2 (DAS) - Tree Fruit Research & Extension Center
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