Production and Harvesting

Information on growing and harvesting fruit crops, including apples, cherries, peaches, nectarines, pears, grapes, blackberries, blueberries, raspberries and strawberries. Tips on thinning, pruning, grafting, maturity assessment and pollination.

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Centennial Celebration & Field Day
Centennial Celebration & Field Day - Workshops Workshops

Centennial Celebration & Field Day

07/10/2018

Biglerville, PA

$20.00
Join the Fruit Research & Extension Center for a Centennial Celebration & Field Day! More
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
1940's photo at the Fruit Research Lab. Do you know who these men are? (see comments at the end of this article)
FREC Centennial Celebration and Field Day - News News
The Fruit Research and Extension Center has a one-hundred-year history of developing scientific information for the benefit of the fruit industry throughout Pennsylvania. Come join our celebration on July 10, 2018. 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
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
Mechanical peach blossom thinner commercialized as a result of multi-state research led by Penn State. Photo: Loy Elliott
Grower Input Needed For Industry Engineering Needs Assessment - News News
The Penn State Fruit Research and Extension Center (FREC) is currently conducting needs assessments and would like to hear from Pennsylvania tree fruit growers. More
Apple Top-Working: Managing the New Grafts
Apple Top-Working: Managing the New Grafts - Articles Articles
Top-working is the name for grafting established trees to another variety. The existing tree, the “stock”, is cut back, leaving just one or two limbs (nurse limbs) to supply the tree with energy. More
The FREC weather station. Photo: Kari Peter, Penn State
Exposing Your Weather Station To The Elements - News News
Weather station maintenance is very important for gathering accurate weather data, but it is just as important to make sure your well-maintained instrument is properly placed without any shade throughout the day. More
A multi-tier shake-and-catch harvesting platform (WSU design by Dr. He and team). Photo: Long He, Penn State
Orchard Automation - Engineering Opportunities for Fruit Growers - Articles Articles
Fruit growers have many challenges related to the labor-intensive needs of tree fruit production and increasing global competition. Fortunately, new precision management and automation technologies are on the horizon. 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
Photo 1. Blueberry blossom showing the characteristic flowers of this plant. Note that the flowers are closed, bell-shaped and pendant. Photo credit: Nicole Castle, contributed to Plant Village.
Who Pollinates Pennsylvania Blueberry Plants? - Articles Articles

Who Pollinates Pennsylvania Blueberry Plants?

Margarita López-Uribe, Ph.D., Shelby Fleischer, Ph.D., Kristal Watrous, Nolan Amon

Blueberries (genus Vaccinium) are a high-value crop in Pennsylvania and the United States, with an estimated value of at least $825 million to the US economy in 2014. More
Strawberry plant with mild winter injury. Photo: Kathy Demchak
Spring Strawberry Growth, or Lack Thereof - News News
This year, we had a long cold winter, the spring warm-up just isn’t happening yet in much of the state, and plant growth is nearly 2 weeks behind schedule. More
Frost-induced russet also known as Frost Ring. Photo: Jim Schupp, Penn State
Apple Skin Disorders: Scarf Skin and Russet - Articles Articles
Scarf skin and russet are skin defects that can diminish the market value of fresh fruit. 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
No Empty Chairs at Bilingual Workshop on GAP and Pruning Fruit Trees
No Empty Chairs at Bilingual Workshop on GAP and Pruning Fruit Trees - News News
On Saturday, April 7th, 2018, Penn State Extension offered a practical field training for Spanish-speaking growers and workers in the fruit industry. More
Thinning Peach Blossoms: Increase Fruit Size and Reduce Labor Requirement
Thinning Peach Blossoms: Increase Fruit Size and Reduce Labor Requirement - News News
Peach blossoms are just starting to open this season, and full bloom will be more than a week later than normal. More
Peach Crop Load Management: Blossom Thinning and Fruit Size
Peach Crop Load Management: Blossom Thinning and Fruit Size - Articles Articles

Peach Crop Load Management: Blossom Thinning and Fruit Size

Tara Baugher, James Schupp, Ph.D., Paul Heinemann, Ph.D.

Many growers are hesitant to thin peaches at bloom because they fear the chance of bud loss to frost at this early stage of development. More
Freeze damage on Concord. Photo: Michela Centinari, Penn State
Understanding and Preventing Spring Frost and Freeze Damage - Articles Articles
When early spring warming is followed by below freezing temperatures, grape growers keep their fingers crossed hoping to escape freeze injury. 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
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