Category Archives: Seasonal notes

New Considerations for Controlling Bitter Rot on Apples

In previous commentary, fungicides recommended for control of bitter rot in the Northeast included captan, ziram, and QoI fungicides, but continued dependence on the latter is probably neither sustainable nor advisable. Read my recent article published in Scaffolds Fruit Journal for the rationale … Continue reading

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Anticipating Outcomes from a Week of Rain

Tuesday evening, May 3rd: Hudson Valley fruit growers should be thinking very carefully about their disease control strategies for the next few days. The good news is that the weather is too cool for fire blight to be a concern … Continue reading

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Credibility of Fire Blight Forecasts

Given that apples and pears are blooming again in the Hudson Valley, it’s time to think about fire blight. The primary risk from fire blight occurs during bloom, as everyone should know by now. The fire blight bacterium, Erwinia amylovora, … Continue reading

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Adding Insult to Injury: Scab Warning

In addition to cold injury from our current cold snap, a scab infection period may arrive in the Hudson Valley with the warm rains predicted for Thursday. (No the snow did NOT kill the scab spores, and yes, the spores … Continue reading

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Revisiting Scab Risks for This Week

The scab infection risk for April 1-3 in the lower Hudson Valley may be waning, although caution is still advised. As suggested in my earlier post this morning, weather predictions that vary widely for events that are three or four days … Continue reading

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Apricots at Full Bloom

Tuesday, April 22: Apricots at the Hudson Valley Lab were in full bloom this afternoon.  Trees on top of the hill behind the lab showed very little bud damage, but other apricots planted in a colder area on the back side … Continue reading

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Avoid Adding Insult to (Frost) Injury

16 April 2014:  Low temperatures early this morning (Wed) varied by region, but ranged from 28 to as low as 23 across the Hudson Valley. More freezing temperatures are predicted for early Thursday morning.  Green tissue in apple buds that … Continue reading

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Sun, 6 April:  They may have been active before, but I heard the first spring peepers this afternoon. The buds on red maples are swollen and ready to pop. Both events are indicators that the time for the first tree fruit … Continue reading

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