Penn State Extension
Penn State Extension
Marssonina blotch is a foliar disease first identified in Pennsylvania in September 2017. Conditions are favorable for this disease and symptoms have been observed in several orchards.
Cation Exchange Capacity or CEC is a measure of the ability of a soil to hold cations or elements with positive charges.
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.
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.
Continuamos nuestra serie donde hemos estado examinando informes de prueba del suelo para los túneles altos.
July started out dry and hot but transitioned quickly, with almost no warning, to very wet and hot.
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.
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.
Wet weather and variable temperatures across the state continue to be challenging for vegetable and berry production.
pH del suelo en una encuesta de 27 túneles altos en Pennsylvania
Niveles de fósforo, potasio, magnesio y calcio en una encuesta de 27 túneles altos en Pennsylvania.
Phosphorus (P), potassium (K), magnesium (Mg), and calcium (Ca) levels in a survey of 27 high tunnels across Pennsylvania.
Kari A. Peter, Ph.D.
Resistance has sometimes resulted in pest-management-program failures. Below are presented tactics to help delay resistance to fungicides.
Cloudy weather, rainstorms, and variable temperatures across the state have slowed some crops and created very favorable conditions for disease development.
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.
Conditions were incredibly optimal for many tree fruit diseases during the month of May. Management strategies for pome and stone fruit diseases are discussed.
Reports of fire blight infections have started to occur. The dos and don’ts of managing fire blight infections are discussed.
Trees need to be protected during wet conditions. The following are strategies for keeping diseases in check on apple and stone fruit during persistent rainy weather.
It’s no secret that this spring has been cold and wet across Pennsylvania. On many farms, planting has been delayed as much as three weeks, and many crops already in the ground are developing more slowly than usual.
The forecast for May 15–18 indicates conditions will be favorable for apple scab and bacterial spot on peach infections. If infections occurred during bloom, fire blight symptoms could begin to appear this week.