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Cassidinae larvae may be leaf miners (many of the former Hispinae), stem borers (e.g. Estigmena) and external leaf feeders (e.g. Leptispa, Oediopalpa). [9] Chrysomelinae generally feed on leaves as adults and larvae, though some species feed on flowers instead. [10] Criocerinae larvae are usually leaf miners or feed externally on leaves. [9]
The blue willow beetle (Phratora vulgatissima), formerly Phyllodecta vulgatissima, is a herbivourous beetle of the family Chrysomelidae. It is dark with a metallic sheen that ranges from a blue color to bronze. It is distinguished from P. vitellinae by the latter more commonly displaying bronze coloration.
Symphyotrichum praealtum is a perennial, herbaceous plant with long rhizomes. [3] The thick, firm leaves have conspicuous reticulate venation below. [4] Flowering occurs from August to November, [5] by which time the lower leaves are often withered.
Diamond willow is a type of tree with wood which is transformed into diamond-shaped segments that have alternating colors. Salix bebbiana , the most common, is a species of willow indigenous to Canada and the northern United States, from Alaska and Yukon south to California and Arizona and northeast to Newfoundland and New England.
These minute insects, colloquially known as hoppers, are plant feeders that suck plant sap from grass, shrubs, or trees. Their hind legs are modified for jumping, and are covered with hairs that facilitate the spreading of a secretion over their bodies that acts as a water repellent and carrier of pheromones . [ 1 ]
Leaves show a characteristic curling, similar to damage caused by viruses. Heavily infested plants have shortened internodes leading to resetting or a "bunchy top" appearance. A heavy, black, sooty mold may develop on an infested plant's leaves and stems as a result of the mealybug's heavy honey-dew secretions.
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When feeding, C. auratus beetles feed on the margins of A. cannabinum and A. androsaemifolium leaves. The beetle will chew a five-to-seven-millimeter channel that sits diagonal from the leaf margin and points in the direction of the leaf's apex. Because this channel transects the major veins of the leaf, these initial cuts will exude a large ...