![]() ![]() However, we have seen a few cases of rootstock infections, where the entire tree wilts suddenly and dies. This year, fire blight due to blossom infections is at an “average” level. Tree girdled by fire blight bacteria from rootstock infection. (Mid-September is the time when the eggs stop hatching due to shorter day-lengths.) Fire Blight Rootstock Infection trees die suddenly Therefore, it is important to maintain protection of fruits regularly until September 15, or harvest (whichever is earlier). However, at time of year, egg hatch is almost continuous. Most areas are approaching the period of greatest egg hatch for the second generation. (Note: some dates are in italics because they are past dates.) Be sure to read the instructions at the top of the page, for how to read the table. The brown material on the outside of this fruit is frass (excrement), indicating a larva feeding on the seeds inside the fruit. 15 Check fruit for damage throughout the season. Codling Moth provide continuous protection of fruit until Sept. ![]()
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