Bloom is expected to occur quickly this week. Fire blight risk is high for April 14–18 in blooming orchards. If rain occurs during this time, fire blight will develop. Protect open blossoms this week as a precaution.
No rain is currently forecasted for April 7–15. These are excellent conditions for powdery mildew in both apple and peaches. If apples are at tight cluster and peaches are at petal fall, control must start now.
By Kathy Demchak, Kelly Hamby, Bryan Butler, Neelendra Joshi
Spotted wing drosophila (SWD), Drosophila suzukii, continues to be a problem for growers of soft-skinned fruit such as blackberry, blueberry, cherry (sweet and tart), and raspberry (black and red).
Mummy berry, Monilinia vaccinii-corymbosi, is a disease of highbush, lowbush, and rabbiteye blueberries. It is most common following moist, spring weather conditions.
Orange rust is a common systemic disease that infects black raspberries and blackberries, but not red raspberries. Symptoms are more severe in wet years.
Anthracnose, caused by species in the genus Colletotrichum, can manifest as a fruit rot, crown rot, and/or leaf spots, as well as lesions on petioles and runners.
A successful strawberry planting hinges on getting the basics right at planting time. If you use a few simple practices, you are well on your way to having a vigorous planting.
The forecast suggests that April 1 – 2 will trigger apple scab infections, and growers should keep an eye on April 3 – 5. Closely monitor your location. General tips for disease management during this time are discussed.
Powdery mildew, a warm-weather high-humidity disease, appears occasionally in blueberry plantings. Lowbush, highbush, and rabbiteye blueberries can be affected.
Verticillium wilt is caused by two common soilborne fungi (Verticillium dahliae and Verticillium albo-atrum) that have a wide host range and attack more than 300 woody and herbaceous plants.
A guide that reviews the identification, life cycle, and techniques for managing SLF. While it can cause significant damage to plants, it is a nuisance pest in the ornamental and landscape industries.
Retailing directly to consumers can be a viable alternative marketing strategy and means of increasing profits for many small-scale agricultural ventures.
Lycorma delicatula, commonly known as the spotted lanternfly (SLF), is an invasive insect pest present in Pennsylvania and some other eastern states. SLF threatens grape production and tree health and is a nuisance in landscapes.