Articles

Information on the volume of water needed for various agricultural purposes.

Tips and instructions for using the Batch Mix spreadsheet, a simple tool for adjusting the amount fed as the dry matter of forages changes.

Determine how many heifers you need on your farm for healthy economics.

Feed delivery and timely feed push ups can improve milk production.

Amaurobius and Callobius species of spiders are found in damp locations under bark, leaf litter, and stones, as well as in woodpiles and other protected areas.

Yellowmargined leaf beetle (YMLB) (Microtheca ochroloma) is a serious pest of cruciferous crops.

Juniper and minute cypress scales are pests of junipers, cedars, cypresses, false cypress, incense cedar, and related trees and shrubs in landscapes and nurseries.

Magnolia leaf-footed bugs are brown bugs occasionally found on magnolia. They do not pose a risk to human health and do not cause damage to or reduce the vigor of infested trees, but may be nuisance pests.

Sclerodermus are small wasps that can become pestiferous and sting people when they attack wood-boring beetle larvae that have infested wooden structures and furniture.

Maple leaves are often infested with a variety of odd-shaped galls and blotches. Many of these are galls that are caused by mites and flies. They do not usually affect the health of the tree.

Catalpa worms are native caterpillars that occasionally outbreak and defoliate catalpa trees.

Definitions for words commonly used to describe spider anatomy, behavior, and bites.

Masked hunters are predatory bugs that sometimes live indoors and feed on pest insects. They can have a painful bite when mishandled.

Spined stilt bugs are an occasional pest of greenhouse tomatoes that can cause flower and fruit abortion and unsightly feeding damage in mature fruits.

Fishing spiders are similar in size, shape, and coloration to the larger wolf spiders. Despite their size and fast movements, these spiders are harmless and rarely bite even when grabbed.

This colorful spider is native to eastern North America.

Trachelas tranquillus can be found on foliage; under leaf litter, stones, and boards; and on buildings under the windowsills and siding.

The Eurasian red-and-black melyrid is a beetle that is occasionally found in homes. It is not a threat to human health or structures, so is a nuisance only because of its presence.

European paper wasps were introduced into North America in the 1970s and have since spread across the continent. They outcompete native paper wasps and negatively affect caterpillars.

This spider is found throughout most of the continental United States and Canada.

Zebra jumpers are an introduced Eurasian species that are found throughout the US and adjacent Canada, although uncommon in the Southeast. They are harmless.

Banded garden spiders inhabit similar locations as yellow garden spiders, but are not as common in Pennsylvania.

Wood cockroaches are beneficial decomposers found in natural habitats. They occasionally enter homes where they can be nuisance pests.

The longbodied cellar spider has extremely long legs and is found in many types of buildings throughout the year. It is not known to be in any way harmful.

House centipedes are of little concern to homeowners, despite their long legs and scary appearance. They feed on many different arthropods, including pest insects.