Penn State Extension
Penn State Extension
Articles Spraying by the Numbers: Fungicide Resistance Management
Kari A. Peter, Ph.D., Alan R. Biggs
Growers can prevent resistance to fungicides by alternating chemicals by FRAC group also known as "spraying by the numbers." More
News La calidad del agua tiene una gran influencia en el crecimiento y desarrollo de los cultivos. More
News Water quality has a large influence on crop growth and development. More
News Informe de Prueba del Suelo del Túnel Alto: Materia Orgánica y Capacidad de Intercambio Catiónico
02/04/2019
El año pasado, hemos estado trabajando con 27 agricultores y agricultoras de Pennsylvania para entender mejor los suelos en túneles altos. More
News Penn State Extension has planned nine regional educational meetings for commercial tree fruit producers in 2019. More
Articles Manteniendo Frescos los Productos Agrícolas Frescos
Thomas Ford, Tianna DuPont
Manejo postcosecha para venta en mercados de agricultores y venta directa de la huerta a instituciones. More
News There were many diseases affecting tree fruit growers in 2018. Sanitation will be very important while preparing for the 2019 season. More
Articles Apple Disease - Marssonina Blotch
Kari A. Peter, Ph.D.
Marssonina blotch, caused by Marssonina caronaria, is a foliar disease first identified in Pennsylvania in September 2017. More
News Cation Exchange Capacity or CEC is a measure of the ability of a soil to hold cations or elements with positive charges. More
Articles MIP – Exploración y Manejo de la Roña de la Manzana
Kari A. Peter, Ph.D., Montserrat Fonseca Estrada, Tianna Dupont
Asegúrese de saber dónde pasa el invierno la roña de manzana, cómo supervisarla y cuándo es más probable que aparezca. More
News The Tree Fruit Pathology Lab at the Fruit Research and Extension Center is seeking apples infected with the fungus causing bitter rot from around the state of Pennsylvania in commercial orchards. More
News Continuamos nuestra serie donde hemos estado examinando informes de prueba del suelo para los túneles altos. More
News July started out dry and hot but transitioned quickly, with almost no warning, to very wet and hot. More
News Soluble salts commonly found in soils are calcium, magnesium, sodium, chloride, sulfate, and bicarbonate. Potassium, ammonium, nitrate, and carbonate are also found, but in smaller quantities. More
News Managing Fruit Rots This Season
07/26/2018
Fungicide re-applications are necessary since several inches of rain have fallen the last few days. Management considerations are discussed for mitigating pome and stone fruit rots. More
News Downy mildew was confirmed on cucumber in Mifflin County on July 11. Warmer weather throughout the state is helping crops along, but has also been good for insect pests. More
News Wet weather and variable temperatures across the state continue to be challenging for vegetable and berry production. More
News pH del suelo en una encuesta de 27 túneles altos en Pennsylvania More
News Niveles de fósforo, potasio, magnesio y calcio en una encuesta de 27 túneles altos en Pennsylvania. More
News Mid-Season Tree Fruit Disease Update
06/26/2018
The latest 2018 disease updates growers need to know for apple scab, fire blight, sooty blotch and flyspeck, bacterial spot, and cherry leaf spot. More
News Phosphorus (P), potassium (K), magnesium (Mg), and calcium (Ca) levels in a survey of 27 high tunnels across Pennsylvania. More
Articles Tree Fruit Disease Toolbox - Fungicide Resistance Management
Kari A. Peter, Ph.D.
Resistance has sometimes resulted in pest-management-program failures. Below are presented tactics to help delay resistance to fungicides. More
Articles Stone Fruit Disease - Rhizopus Rot
Kari A. Peter, Ph.D.
Rhizopus rot, caused by Rhizopus nigricans, can be very destructive to harvested fruit. More
Articles Apple Disease - Blossom End Rot
Kari A. Peter, Ph.D.
Blossom end rot of apple, is caused by various fungi (Sclerotinia sclerotiorum, Botrytis cinerea, Botrysphaeria obtusa) just before or during petal fall. More
News Cloudy weather, rainstorms, and variable temperatures across the state have slowed some crops and created very favorable conditions for disease development. More