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Pest Management


Pray for the Prey of the Praying Mantis

by Bud Reaves, Anne Arundel Forestry Board

Mantises are one of the most ferocious predators in the animal kingdom. Able to capture and kill prey much larger than themselves, they have adapted into efficient, ruthless hunters and are valuable in the control of insect pests; however, exotic mantises may do more harm than good where they become too numerous

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Spotted Lanternfly (Lycorma delicatula)

The spotted lanternfly is a non-native sap-feeding planthopper also known as the lanternmoth. The first sighting of the spotted lanternfly in the United States was in Berks County, Pennsylvania in 2014. In 2017 a single individual was found in Delaware in November and a few days later in New York. January 2018,…

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Managing Land for Pollinators and Conservation Biocontrol

by Emily May Conservation biological control is a science-based pest management strategy that seeks to integrate beneficial insects back into the landscape for natural pest control, ultimately reducing and in some cases eliminating the need for pesticides. Farm landscapes can provide food and shelter for pollinators and other beneficial insects, boosting populations of these insects…

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Is There Hope for Growing Lilies in New England Again?

by Lisa Tewksbury In the early 1990s New England acquired a new pest of lilies from Europe, the lily leaf beetle (Lilioceris lilii), which made growing lilies to their full potential almost impossible. The adult is a beautiful red beetle, but the immature stage is a larva that can defoliate lily leaves and has the…

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Drought and Pests

by Heather Faubert Two general statements about droughts, insects, and diseases hold true: Most plant-feeding insects tend to survive very well under drought conditions. Plant diseases are not very troublesome during droughts. All insects can acquire various fungal disease and these diseases generally need high humidity. Similarly, most plant diseases need rain or at least…

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Rose Insect Pest Alert: The Roseslug Sawfly, Hymenoptera: Tenthredinidae

by Bruce Wenning Sawfly insects are in the order Hymenoptera that includes bees, ants, wasps, parasitic wasps, and sawflies. Metamorphosis is complete: egg, larva, pupa, adult (Borror, Triplehorn and Johnson, 1989). Sawfly larvae differ from larvae in the order Lepidoptera (butterflies and moths) by lacking noticeable body hairs, having a well-developed head, and possessing more…

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Garden Insect Primer: Getting to Know Common Garden Insect Pest Groups and their Associated Signs of Plant Damage

by Bruce Wenning There are 31 orders of insects, but of those only 11 orders contain economically important pests of trees, shrubs, garden plants, lawns, vegetable crops, wood, and fiber. Most of the insect damage caused to garden plants plaguing garden maintenance people and garden designers are concentrated in just seven orders.

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The Emerald Ash Borer: Information about the Ash Tree Killer and other “Boring” Beetles

by Bruce Wenning It is important for ecological landscaping professionals to know the differences between various insect pests and non-pests. Most can recognize common insects such as bees, wasps, butterflies, dragonflies, ants, scale insects, aphids, and perhaps a few others. Everyone knows what spiders look like and understand that spiders are beneficial garden arthropods. Correctly…

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