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Spotted lanternfly on apple in Berks County, PA in October 2017. Photo: Erica Smyers, Penn State
Spotted Lanternfly on Grapes and Tree Fruit - Articles Articles

Spotted Lanternfly on Grapes and Tree Fruit

Julie Urban, Dave Biddinger, Ph.D., Ed Rajotte, Ph.D.

Biology, management and slowing the spread of the spotted lanternfly on grapes and tree fruit in the Mid-Atlantic Region. More
Orchard IPM - BMSB and Woolly Apple Aphid
Orchard IPM - BMSB and Woolly Apple Aphid - Articles Articles
As growers approach harvest, they start to find out whether or not they have much injury from brown marmorated stink bug (BMSB) and whether a final spray is needed. More
Orchard IPM - BMSB and San Jose Scale
Orchard IPM - BMSB and San Jose Scale - Articles Articles
A pest that has flared due to BMSB sprays has been San Jose Scale (SJS). SJS is a relatively easy pest to control with many different control options added in the last 10 years. More
Orchard IPM - BMSB Sprays and Mites
Orchard IPM - BMSB Sprays and Mites - Articles Articles
This article contains some guidelines and control strategies for minimizing the impacts BMSB sprays on mites for the next season. More
Predator mite attacking European red mite. Photo courtesy of Dr. David Biddinger
Orchard IPM - European Red Mite Biological Control - Articles Articles

Orchard IPM - European Red Mite Biological Control

Dave Biddinger, Ph.D., Tara Baugher

Infestations of red mites can result in smaller fruit and a reduced fruit bloom the following season. More
Osmia cornifrons on an apple blossom. Photo: David Biddinger
Orchard Pollination - Solitary (Mason) Bees - Articles Articles
Growers of bee-pollinated crops, particularly apples, may be interested in the possible use of solitary bees as pollinators. More
Tree Fruit Insect Pests - Yellow Jackets and Hornets
Tree Fruit Insect Pests - Yellow Jackets and Hornets - Articles Articles
While greater opportunities for biological control of some apple pests exist in today's orchards, we are seeing a greater diversity of generalist predators. More
Fruit diameter and seed set in crabapples associated with various pollinators
Orchard Pollination - The Role of Pollen Bees - Articles Articles
Wild and managed non-honey bee species have long supplemented honeybee pollination in fruit orchards. More
Growers dependent on honey bees must constantly maintain a delicate balance between protecting their crops from pests and pathogens and protecting pollinators.
Orchard IPM - Protecting Honey Bees - Articles Articles
European honey bees are the primary managed pollinators in orchards because their abundance can be managed from year to year. More
Photo by M. Seetin.
Orchard Pollination - Avoid Pesticide Sprays during Bloom - Articles Articles

Orchard Pollination - Avoid Pesticide Sprays during Bloom

Dave Biddinger, Ph.D., Kathy Demchak, Ed Rajotte, Ph.D., Tara Baugher

Use of pesticides during bloom is a complicated problem with the solutions relying on understanding the detailed relationships among chemicals, pollinators and pest management needs. More
Green lacewing eggs are laid on the tips of long, white, hair-like stalks to prevent cannibalism. The larvae (called aphid lions) are generalist predators of mites, thrips, soft scales, and almost any other soft-bodied prey.
Orchard IPM - Natural Enemies/Biological Control in Orchards - Articles Articles
Biological control of pest species by predators, parasitoids, and pathogens has been a cornerstone of IPM since its inception. More
Left: Rosy apple aphid and damage. Right: White apple leafhopper and damage.
Orchard IPM - Integrating Neonicotinoid Insecticides - Articles Articles

Orchard IPM - Integrating Neonicotinoid Insecticides

Dave Biddinger, Ph.D., Grzegorz (Greg) Krawczyk, Ph.D., Ed Rajotte, Ph.D.

Our job in integrated pest management (IPM) is to make sure that if a pesticide is to be used, its benefits outweigh the undesirable side effects. More
Growers dependent on honey bees must constantly maintain a delicate balance between protecting their crops from pests and pathogens and protecting pollinators.
Orchard Pollination - Honey Bees - Articles Articles

Orchard Pollination - Honey Bees

Dave Biddinger, Ph.D.

European honey bees are the primary managed pollinators in orchards because their abundance can be managed from year to year. More
Andrena on apple blossom. Photo: David Biddinger
Orchard Pollination - Wild Bees - Articles Articles

Orchard Pollination - Wild Bees

Dave Biddinger, Ph.D.

Managed pollinators like honey bees and mason bees are important pollinators for orchards, but research suggests that wild bees also contribute significantly to fruit tree pollination. More