Diseases, Pests and Weeds
The Penn State Agronomy Guide is designed for easy reading and quick reference.
What are those spots on the siding of my house, my car or plants? These spots may actually be spores from a group of fungi commonly called "shotgun" or "artillery" fungi.
Bed bugs are making a comeback in apartment buildings, dorm rooms, hotels, hospitals and homes across the country due to people traveling more frequently, resistance to pesticides and lack of public awareness.
Find detailed species descriptions in our collection of entomology fact sheets.
Find information that deals with the insects affecting vegetables, crop management, and the quality of products.
The Pennsylvania Integrated Pest Management Program (PA IPM) is a collaboration between the PA Department of Agriculture and the Pennsylvania State University College of Agricultural Sciences (view the 1998 Memorandum of Understanding between PDA and PSU). The mission of this program is to promote effective pest management that results in the efficient protection of our food, fiber, health, home and industrial resources in a manner that is profitable, safe and environmentally compatible.
The Pennsylvania Pest Information Platform for Extension and Education (PA PIPE) has been developed as a collaborative effort between Penn State College of Agricultural Sciences faculty and ZedX, Inc. to provide an early warning system for key pests attacking crops.
The Pesticide Education Program strives to educate all pesticide applicators and users across the Commonwealth about pest management alternatives, including the safe, proper, and legal use of pesticides. The program promotes responsible decision-making, which will protect pesticide users, public health, plant and animal health, and the environment.
A northeastern regional view over space and time of dynamic information useful for managing insects or diseases.
Common diseases of plants frequently grown in greenhouses, interiorscapes, and in outdoor landscapes and nurseries in the northeastern U.S.
Plum pox virus (PPV) was discovered for the first time in North America in 1999 in a peach orchard in Adams County, Pennsylvania. In Pennsylvania, peach, plum, nectarine, and apricot stone fruit and native and ornamental Prunus are susceptible to PPV, Strain D. In 2007 to 2009 analyses of PPV survey data showed that all quarantined areas met the three-year requirement of no new positives.
Welcome to the Penn State Entomology vegetable IPM website. Information from this site deals with the insects affecting vegetable crop management and the quality of products. Integrated pest management is a primary focus of the program at Penn State.
Weeds can be native or alien invasive plants that harm agricultural, disturbed, and natural ecosystems. Some people call weeds “plants out of place”, but to farmers, conservationists, land managers, and even homeowners, weeds can be extremely problematic.
Weeds can be native or alien invasive plants that harm agricultural, disturbed, and natural ecosystems. Some people call weeds "plants out of place", but to farmers, conservationists, land managers, and even homeowners, weeds can be extremely problematic. Learn about Penn State weed management research and education programs and link to other sites that can help you manage these problem plants.
AGRS-025. This recently revised 118-page guide summarizes insect, mite, and disease management practices for woody ornamentals and shade trees. The three major topic areas are insects and mites, diseases, and pesticide safety. Its use is intended primarily for arborists, nursery growers, landscape maintenance personnel, extension educators, and consultants. $15.00
