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Pemphigus betae, also known as the sugarbeet root aphid, is a species of gall-forming aphid that forms galls specifically on the commonly found narrowleaf cottonwood (aka the willow-leaved poplar tree), Populus angustifolia. Sugarbeet root aphids have been found in North America and Europe. [2]
Excessive heat kills the symbiotic bacteria that some aphids depend on, which makes the aphids infertile. [96] Rain prevents winged aphids from dispersing, and knocks aphids off plants and thus kills them from the impact or by starvation, [92] [97] [98] but cannot be relied on for aphid control. [99]
Hyadaphis winged and wingless adults When wings are present they occur only on particular morphs called " alates ", and wingless morphs are said to be " apterous ". The forewing ( mesothoracic wing) of the alate in the Aphididae has four to six veins attached to a major vein-like structure that has been interpreted as the combined stems of all ...
Rhopalosiphum rufiabdominale, the rice root aphid or red rice root aphid, is a sap-sucking insect pest with a wide host range and a global distribution. [2] As a member of the superfamily Aphidoidea, it is one of 16 species of the genus Rhopalosiphum. [3] Adults and nymphs are soft-bodied and usually dark green with brown, red, or yellow tones. [4]
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The aphid feeds on the tree roots, and shelters inside hollow sclerotia formed by the fungus in the soil, or attached to the root system. The aphid secretes carbohydrates and other nutrients that benefit the fungus. [11] The fungus is found in eastern North America, from eastern Canada south to Alabama and west to Wisconsin. It is also found in ...
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Hemiptera (/ h ɛ ˈ m ɪ p t ər ə /; from Ancient Greek hemipterus 'half-winged') is an order of insects, commonly called true bugs, comprising over 80,000 species within groups such as the cicadas, aphids, planthoppers, leafhoppers, assassin bugs, bed bugs, and shield bugs.