Notes from Dr. Borkosky

Oregon State University Extension entomologist Silvia Rondon discusses the tools and supplies needed to start an insect collection. Community Rules apply to all content you upload or otherwise submit to this site. Instead, they chase after insects, especially those that have landed on walls and ceilings (that's where you're most likely to see these spiders). Dec 2018 | (Photo: Dr. James Starrett), Zebra jumpers are commonly seen on the exterior walls of houses, and occasionally inside. What is lurking in your dreams, Oregonians? Collection. Jun 2018 | And not to keep you up at night, but there are official accounts of black widows appearing in the western part of the state. They do not build webs to catch prey, but instead stalk prey in a manner very similar to cats. Demonstration of how to use a sweep net to collect insects. Oct 2018 | Black Widow spiders are actually the most dangerous Oregon spiders and when found on your property they should make you nervous.

Common Name: Wolf Spider. Amy Dreves, an entomologist with the Oregon State University Extension Service, demonstrates how to make traps out of plastic cups to catch the spotted wing drosophila fly. (Courtesy Susan Masta/PSU), Female wolf spiders carry their eggs sacs on their abdomen, and when the spiderlings first hatch they crawl onto her abdomen and ride around with her. (Rosa Pineda/Wikimedia Commons). (Courtesy Jessica Szabo/PSU), The yellow sac spider (Cheiracanthium mildei) came to the U.S. from Europe (as did most of the house-dwelling spiders we see around the Portland area). Scientific Name: Lycosid spider. (Courtesy Jessica Szabo/PSU), The running crab spider (Philodromus dispar) does not build a web, but instead ambushes insect prey. Learn how to identify the spotted wing drosophila fly.

(Courtesy of Robert Niese/NorthwestNaturalist.tumblr.com), Despite its name, this spider prefers to spin webs in ground-level vegetation as opposed to your lawn. But knowing how to identify what you see just might come in handy, if you are the unlucky recipient of a rare spider bite. See how to clean up fallen fruit so spotted wing drosophila flies don't have a place to lay eggs and so any possible larvae already in the fruit will die. Collection. The resources in this collection will help you learn how to find and collect insects and arthropods, then prepare them so that they can be useful for identification and research efforts. Some important vectors of plant pathogens in the Pacific Northwest ... Silvia I. Rondon | They don't build a web and wait for prey.

Silvia I. Rondon, Mary Corp | The Cryptomaster behemoth lives in mountainous and forested regions of southwest Oregon.

May 2018 |

Learn how to identify the spotted wing drosophila fly. Vaughn Walton, Linda Brewer, Bernadine Strik, Patricia Skinkis, Peter Shearer, Jana Lee, Man-Yeon Choi | Silvia I. Rondon | aren't sure what that creepy crawly thing in your yard or garden is. A list of spiders that can be commonly found in or around central Oregon. Spiders may freak you out, but Susan Masta, associate professor at Portland State University's Department of Biology, notes that they are unlikely to bite humans (their mouthparts are designed to feed on small things, like insects, not huge-to-a-spider things like a person.) Oregon State University Extension's Mary Corp explains the importance of labeling insects in a collection and how to do it.

Wolf spiders are not poisonous, though as with all spiders, bites may cause reactions in certain individuals. When the young spiderlings hatch, they climb onto their mother's back and ride around until partially grown. The Oregon Department of Agriculture notes that hobo spider bites are rare in Oregon. Jul 2011 | The common name "wolf spider" refers to the fact that they do not build webs to catch prey, but instead hunt prey in a similar manner as wolves do.

But, officially, the brown recluse spider, with a venom that can cause skin lesions in humans, is not present in Oregon, scientists say. Apr 2015 | Here’a a list of Jumping Spiders in the state. (Courtesy Jessica Szabo/PSU), Another common outdoor spider is the Cross orb weaver (Araneus diadematus).

This video demonstrates how to hang traps and place them on the ground to catch the spotted wing drosophila fly. They leave the relative safety of her abdomen before they molt. (Courtesy Susan Masta/PSU), There are a number of different species of wolf spiders, and one species is abundant in gardens in the Willamette Valley, while other species can be observed while hiking. Scotophaeus blackwalli (Mouse Spider) Common Garden Spiders in Oregon The types of common garden spiders in Oregon are similar to garden spiders around the United States. They are commonly found around doors, windows, house plants, basements and garages. Collecting insects can be a fun hobby, and is also an important step in IPM.

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