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Figure 1. Delicious fruit size on June 4, 2018 at Rock Springs, PA. Photo: Rob Crassweller, Penn State
Last Carbohydrate Model Run for 2018 - News News
As of June 11, 2018, most areas of the state are now at or beyond 30 days after reported full bloom. More
Carbohydrate Model Run - June 4 2018
Carbohydrate Model Run - June 4 2018 - News News
The high temperatures experienced in most of Pennsylvania last week were relieved Saturday into Sunday as rain moved across the state. More
Discoloration of developing fruitlets indicating they will be dropping. Photo: Rob Crassweller, Penn State
Carbohydrate Model Run: May 30, 2018 Ideal Weather for Thinning - News News
Since the last carbohydrate model report on May 25, last Friday, weather conditions were optimal to induce fruit drop due to chemical thinner application. More
It is important to monitor your orchard site for conditions. Photo: Kari Peter, Penn State
Disease Update: More Advice for Limiting Fire Blight Spread - News News
Fire blight symptoms are widespread throughout Pennsylvania and Maryland. Growers are encouraged to use Apogee or Kudos to shut down tree growth to limit the spread of the disease in orchards. More
Cornell Carbohydrate Model Run: May 25, 2018
Cornell Carbohydrate Model Run: May 25, 2018 - News News
Warm temperatures are affecting thinning. Most stations across the state are forecasting high temperatures to be in the 80’s today and for the next several days. More
M27 trees in bloom. Photo: Rob Crassweller, Penn State
Cornell Carbohydrate Model Run: May 21, 2018 - News News
Saturday in central Pennsylvania was overcast all day with early morning rain followed by rain on Sunday morning and then sun in the afternoon. More
Photo: Rob Crassweller, Penn State
Carbohydrate Model Run: May 18, 2018 Thinning Weather Has Changed - News News
We finished our May twilight meetings yesterday with the meeting in North East, PA. Beginning on Tuesday of this week most of our travel weather was overcast with much heavy rain. More
Figure 1. One-inch diameter hail stones fell at the Fruit Research and Extension Center, May 10, 2018. Photo: Jim Schupp, Penn State
Chemical Thinning After an Early Season Hail Storm - News News
Orchards in Adams County were hit with hail on the afternoon of May 10, when the trees were at petal fall. In the following days, other locations in SE and Central PA also suffered hail damage. More
Is It Okay to Concentrate Chemical Thinners?
Is It Okay to Concentrate Chemical Thinners? - News News
Most pomologists prefer not to concentrate thinners. For a thinner to work, it must be applied, absorbed, and translocated in sufficient concentration so as to create a transient stress. More
Carbohydrate Model Run: Thinning Time is Here!
Carbohydrate Model Run: Thinning Time is Here! - News News
It looks like spring finally arrived in the last two weeks and many orchards are thinning apples. More
Petal fall. Photo: Tara Baugher, Penn State
Begin Treatments Now for Scarf Skin and Russet - News News
Petal fall is occurring in most orchards in Pennsylvania and signals the time for the first spray treatments for scarf skin and russet. More
Bloom is still raging in the orchard. Stay vigilant for disease conditions! Photo: K. Peter, Penn State
Disease Update: Fire Blight and Scab Risk Continues This Week - News News
Bloom is occurring in Pennsylvania apple growing regions—fire blight conditions continue, available mature apple scab spores are very high, and an apple scab infection event is predicted for May 10, 2018. More
Protect your blossoms so they don’t look like this picture in a few weeks! Photo: K. Peter, Penn State
Disease Update: High Alert for Scab and Fire Blight Infection - News News
Severe fire blight and apple scab disease conditions are predicted for May 3–5, 2018! Protection is absolutely necessary! More
Apple bloom is right around the corner. Be on alert! Photo: K. Peter, Penn State
Disease Update: Apple Scab, Fire Blight, and Brown Rot This Week - News News
May 3–5 could be potential infection periods for apple scab and fire blight. Brown rot infection conditions favorable for open peach blossoms this week. More
Torino labeled to control apple powdery mildew. Photo: K. Peter, Penn State
New Fungicide to Control Apple Powdery Mildew: Torino - News News
Torino (FRAC Group U6) has a supplemental label to control powdery mildew on apples and cherries. More
Empire buds. Photo: Rob Crassweller, Penn State.
Carbohydrate Model Update: April 24, 2018 - News News
As I prepare this note on the status of the carbohydrate model results, we still have two sites that have not reached green tip (GT). More
April 2 snow at Rock Springs. Photo: Rob Crassweller, Penn State
NEWA IPM Monitoring Available for Growers - News News
Funding from the SHAP Extension Committee has purchased a statewide membership to the NEWA IPM Monitoring system for 2018. More
Keep green tissue protected from apple scab. Photo: K. Peter, Penn State
Disease Update: Scab Infection Period April 15 – 16, 2018 - News News
April 15–16 is predicted to be a scab infection period due to green tip present and mature scab spores available. Copper applications recently applied will offer protection. More
Orchard IPM - Field Guide to Tree Fruit Disorders, Pests, and Beneficials
Orchard IPM - Field Guide to Tree Fruit Disorders, Pests, and Beneficials - News News
This Penn State Extension publication, in Spanish and English, is designed for use by orchard employees - often the first individuals to detect a new occurrence of a fruit disease or insect pest. More
2017 SHAP Apple Maturity Overview – Final Posting
2017 SHAP Apple Maturity Overview – Final Posting - News News
In response to an early bloom, wet spring and dry summer, apples matured earlier than normal in 2017. More
2017 Apple Maturity Assessments – Week Thirteen
2017 Apple Maturity Assessments – Week Thirteen - News News
We again sampled Aztec Fuji, Cripps Pink (Pink Lady) and Granny Smith this week. More
Tips and tricks to mitigate 2018 disease problems this fall. Photo: K. Peter, Penn State.
Tree Fruit Disease Management: Final Touches on the 2017 Season - News News
Growers can get a jump on management for this fall to control fungal and bacterial disease in apples and stone fruit to mitigate problems in the 2018 season. More
Aztec Fuji fruit bowl. Photo: Chris Walsh, University of Maryland
2017 Apple Maturity Assessments – Week Twelve - News News
This week we sampled Aztec Fuji, Cripps Pink (Pink Lady) and Granny Smith grown in Maryland. More
Both Cripps Pink (Pink Lady) and Granny Smith are ripening, but also showing signs of sun damage from the dry weather in September. Photo: Kathy Hunt, University of Maryland
2017 Apple Maturity Assessments – Week Eleven - News News
Apple harvest in 2017 has been well ahead of “normal.” This week we again sampled late-season apples, Cripps Pink (Pink Lady) and Granny Smith. More
2017 Apple Maturity Assessments - Week Ten
2017 Apple Maturity Assessments - Week Ten - News News
Granny Smith fruit harvested from Western Maryland are nearing storage maturity, and Cripps Pink fruit are beginning to lose ground color. More
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