Author Archives: David Rosenberger

Apple scab warning

2 pm Fri, April 11:   Leaves collected this morning from an abandoned orchard just north of the Hudson Valley Lab showed a wide variation of ascospore maturity with most pseudothecia of the dozen examined still showing little or no … 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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Fri, 4 April scab maturity assessment: Today Mike Biltonen (Apple Leaf Consulting) and I collaborated on an apple scab maturity assessment and found no apple scab ascospores that were anywhere close to being mature. Not surprising given the fact that … Continue reading

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