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These insects suck the sap from plant leaves. Several thousand species are placed in this family, many of which are considered plant/crop pests. They are the family of insects containing most plant virus vectors (around 200 known) with the green peach aphid (Myzus persicae) being one of the most prevalent and indiscriminate carriers.
Some groups of aphids feed predominantly in the parenchymal tissue of plants while most aphid species feed on the phloem sap. [6] The green peach aphid ingests sugary fluids via a membrane. [12] While feeding on a plant long term, Myzus persicae can uptake chloroplast DNA, even though the chloroplasts themselves are uninjured. [13] Process of ...
Aphis gossypii is a tiny insect, an aphid ("greenfly") in the superfamily Aphidoidea in the order Hemiptera. It is a true bug and sucks sap from plants. It is a widely distributed pest of a variety of agricultural crops in the families Cucurbitaceae, Rutaceae and Malvaceae. [2] Common names include cotton aphid, melon aphid and melon and cotton ...
Honeydew is a sugar-rich sticky liquid, secreted by aphids, some scale insects, and many other true bugs and some other insects as they feed on plant sap. When their mouthpart penetrates the phloem , the sugary, high-pressure liquid is forced out of the anus of the insects, allowing them to rapidly process the large volume of sap required to ...
When feeding on grasses, the aphids suck the sap and at first cause yellow or red spots on the leaves. As the greenbugs become more numerous, the plant progressively develop yellow and red hues, leaves die, roots die and in extreme cases, the whole plant succumbs. On susceptible cultivars of small grain crops, the plant size and yield are affected.
Pentalonia nigronervosa, the banana aphid, is an aphid in the superfamily Aphidoidea in the order Hemiptera. It is a true bug and sucks sap mainly from Musa species. Host plants
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Brachycaudus helichrysi is a species of aphid first described by the German naturalist Johann Heinrich Kaltenbach in 1843. [3] Its common names include leaf curl plum aphid , [ 4 ] and leaf-curling plum aphid , and it is a serious pest of plum and damson trees.