What is it? fost/freeze injury to Liberty apple

What does it mean? likely occurred on or about May 10. Many orchards may see this on fruit, especially on low spots. The frost/freeze event was somewhat widespread but isolated to colder spots. Expect some cider apples/culls at harvest.

What is it? plum curculio (PC) damage to McIntosh apple

What does it mean? this is an older plum curculio scar. PC season is largely over, and as long as you had insecticide coverage through roughly the 3rd week in May, you're done with this pest.

What is it? some kind of internal worm (Oriental fruit moth, codling moth, lesser apple worm, other?) feeding on apple fruit

What does it mean? good question! After a relatively quiet summer last year for lepidopteran 'worms,' I expect a resurgence this year. You should be deploying pheromone traps and determining the need to spray based on biofix, orchard history, or consultant recommendation. lack of insecticide sprays in the next few weeks may mean some unwanted surprises later in the season or at harvest. See codling moth and obliquebanded leafroller trap catches below.

What is it? obliquebanded leafroller (OBLR) in pheromone trap

What does it mean? actual biofix date (1st trap catch) app. May 24. According to NEWA: Peak moth flight, first egg hatch. First hatch of summer OBLR eggs. Adult catches in pheromone traps are near peak numbers. In order to verify model predictions, monitor growing terminals to check for the detection of the first summer larvae. It is too early to monitor populations of summer larvae at this time to determine if control sprays are necessary because most eggs will hatch later during the summer. However, applying protective sprays with the first spray timed to coincide with the first hatch of larvae followed by a second spray 10-14 days later are recommended in orchards that have had a past history of severe OBLR fruit damage or if populations of overwintering larvae were high.

What is it? codling moth (CM) in pheromone trap

What does it mean? estimated biofix date (1st trap catch) app. May 15. According to NEWA: Moth flight peaks and majority of eggs hatch. Adult flights are relatively heavy during this period and the majority of eggs are likely to hatch, so control is critical at this time. Apply a second spray 10-14 days after the initial spray that was timed at first hatch, to provide protection during this critical time period. In high-pressure orchards, it may be particularly important to apply other classes of materials to replace organophosphates or synthetic pyrethroids.

What is it? bacterial canker on 'Chelan' cv. sweet cherry

What does it mean? the early spring seems to have predisposed sweet cherry to bacterial canker infection. Not much can do now except prune-out canker strikes where feasible. Fall and spring applications of copper will help keep canker at bay, or, plant resistant (vs. susceptible) varieties.

What is it? nitrogen deficiency on peach foliage

What does it mean? you should have given peaches a good shot of nitrogen fertilizer by now. If not, your foliage will look yellowish, may have some holes, and overall the tree will look non-vigorous. Peaches should have dark green, large leaves now, with actively growing shoots. It is not too late to apply 1st or another nitrogen application now. As a rule of thumb, apply 0.05 pounds actual N per year of tree age in a split applictaion -- the first sometime pre-bloom and the second 2-3 weeks after shuck split. Young trees (1st and 2nd leaf) need 0.1 pound actual N per year of tree age.

What is it? bird-eaten sweet cherries

What does it mean? time to put up the netting. Cherries are about 10 days early ripening compared to 'normal.'