Weed Identification and Control
Weed Identification and Control
Articles A sure sign of summer, yellow nutsedge is showing up in lawn areas. More
Articles Weed control can be accomplished chemically or mechanically. Depending on the situation, each method has its advantages and disadvantages. More
Articles To adequately control weeds in the small-scale orchard, you should learn proper weed identification. More
Articles Advice for collecting a good plant or insect sample for identification. More
Articles Informational table showing pesticides available for home garden use on various fruit crops. More
Articles Japanese and Giant Knotweed
David R. Jackson
Japanese knotweed (Polygonium cuspidatum) and Giant knotweed (Polygonum sachalinensis) are two invasive, exotic weeds found throughout much of the United States and Canada. More
Articles Japanese Barberry
David R. Jackson
Japanese barberry (Berberis thunbergii) was introduced from Japan around 1875. It now ranges from Nova Scotia south to North Carolina, and westward to Montana. More
Articles Multiflora Rose
David R. Jackson
Multiflora rose is a noxious, non-native shrub considered an invasive weed because of its aggressive growth habit that excludes native plants. More
Articles Oriental Bittersweet
David R. Jackson
Oriental bittersweet is a non-native woody, perennial vine that covers and kills native plants by blocking sunlight, weighing the plants down, and girdling stems and trunks. More
Articles Invasive Weeds - Wild Grape
David R. Jackson
Wild grape (Vitis spp.) is a native vine found throughout Pennsylvania. There are various species of wild grape occurring in a variety of habitats. More
Articles Tree-of-Heaven
David R. Jackson
Tree-of-heaven (Ailanthus altissima) also known as ailanthus, Chinese sumac, and stinking sumac is a rapidly growing, deciduous tree native to a region extending from China south to Australia. More
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Manage insect, mite, and disease pests in your woody ornamentals and shade trees. More
Articles Common Pokeweed Identification and Management
Timothy Abbey
Pokeweed can be a weed in landscape beds and nurseries. More
Articles Bull Thistle Identification and Management
Timothy Abbey
Bull thistle (Cirsium vulgare) is a biennial that true to its name, has notable spines. This plant is much different than Canada thistle. More
Articles Weeds are undesirable because they disrupt turf uniformity and compete with desirable grass species for moisture, light, and nutrients. More