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Winged oleander aphid adult (on a Fleeceflower) |
Oleander aphid
Hemiptera Aphids (Hemiptera Aphids)
О Scientific name: Aphis nerii Boyer de Fonscolombe
О English name: Oleander aphid
О Size: The body length of a non-winged female adult is 2.5mm, and winged adult is 2.2mm
О Host: milkweed, Cynanchum wilfordii, Fleeceflower, Bindweed, Japnese Quince and more.
О Distribution: Korea, Japan, China, Australia, New Zealand, Europe, India, Africa, North America and more
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Non-winged oleander aphid adult (on a Feeceflower) |
The body length of a non-winged female oleander aphid adult is 2.5 mm and it is yellow. Its feelers and its legs are black. The body length of a winged female adult is 2.2 mm. Its head, feelers, and chest are yellow. Its mesothorax and its metathorax are black. Its stomach is yellow and the lower part of its cornicle has black patterns. Its cornicle, edge part, and the bottom part are black.
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Oleander aphid nymphs (on a Fleeceflower) |
From May to June, non-winged female adults stay in a group on the new plant part of host crops. When its parasitic density increases winged female adults appear and it moves to near tree and breed. If the crops get damaged by the oleander aphid, the shoot growth stops. Moreover, from July to August, it moves to the flower stalk and the parasitic density decreases. However, it increases again during September and stays in a group on flower stalk from the flowering season to the end of the season.
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The early instar of oleader aphid nymphs and seven-spotted ladybird adult (on a milkeweed) |
From May to June, the oleander aphids stay in a group on shoots, behind of a leaf and flower stalks and sucks the juice. It causes shoot growth damage. Moreover, the leaves or the branches get dried, and sooty mold occurs. It is common to see in the parks near the city [Text source: National Endemic Knowledge Information of the National Arboretum].
Translated by Sunyoung Cho
Other articles by Deogkee ParkInterviewed on : 2019.02.28 14:49
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#Hemiptera#aphids#Hemiptera#Aphis#medical crop#specialized crop#small-area crops.
