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Disease Update: May 23, 2013
May 23, 2013
Weather conditions are optimal for bacterial spot on stone fruit. Fire blight infection conditions forecasted through May 26. Bacterial spot and cherry leaf spot infection periods are also now posted.
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Carbohydrate Balance Model: May 21
May 21, 2013
Below are tables on four sites for the Cornell Carbohydrate model for apple thinning. Please note that values for May 21 and beyond are estimated forecasts.
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Disease Update: May 17, 2013
May 17, 2013
Fire blight infection conditions forecasted for May 17 - 22 are high. Infection periods for apple scab, fire blight, cedar apple rust, and powdery mildew are being posted.
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Carbohydrate Balance Model: May 17
May 17, 2013
Below are the tables for the Cornell carbohydrate balance model from data derived from SkyBit and NEWA stations in Pennsylvania. The SkyBit stations are Wexford, Richfield and Morgantown. The NEWA stations are North East, Biglerville, Bendersville and York Springs. Remember that you should be looking at a multitude of factors when deciding on a thinning program. Following freezing temperatures at many locations on Tuesday morning, freeze damage assessment is an additional consideration. Be sure to keep good records as to when and what you apply as well as the results.
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Weekly Insect Bytes: May 17, 2013
May 17, 2013
First generation Oriental fruit moth (OFM) flight is continuing across the state. Observations while in Erie County this week indicated that it is a good time to make an initial application to control hatching larvae. In southern counties, the second application of effective products should already be on. In Southern Pennsylvania, codling moth (CM) adults are active and, if needed, the first codling moth treatment should be planned sometime during the week of May 26th. In most orchards no special stink bug control activities are required at this time. Visual search for BMSB adults still remains the only reliable monitoring technique at this time of the season.
