Tuesday, May 17, 2011

Scab and cedar rust infection period

As of 6 PM today, it has been wet 20 hr since last evening at temperatures around 60°F, we have had 2.2 inches of rain since yesterday, and it doesn't look like it is done yet. The best that we can say is that this long wetting period may wear out most of the cedar-apple rust galls, although there still was inoculum available for this one.