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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.
These aphids are also the vectors of about 30 plant viruses, mostly of the nonpersistent variety. The aphids may not be the original source of infection, but are instrumental in spreading the virus through the crop. [9] Various chemical treatments are available to kill the aphids and organic growers can use a solution of soft soap. [12]
Elatobium abietinum, commonly known as the spruce aphid [2] or green spruce aphid, [3] is a species of aphid in the subfamily Aphidinae that feeds on spruce (Picea spp.), and occasionally fir (Abies spp.). It is native to Northern, Central and Eastern Europe and has spread to Western Europe, North America and elsewhere.
In parts of yard, overwintering bees and other beneficial insects live in dormant plant material. But aphids, beetles lurk in veggie plot.
Many aphids performing this action at the same time has led to this species being referred to as the "Boogie-Woogie Aphid". [2] Beech blight aphids moving in unison - doing the Boogie Woogie. Deposits of sooty mold caused by the fungus Scorias spongiosa build up below the colonies, growing on the copious amounts of honeydew the insects exude. [3]
Viral infections, which can be extremely harmful to aphids, can also lead to the production of winged offspring. [64] For example, Densovirus infection has a negative impact on rosy apple aphid (Dysaphis plantaginea) reproduction, but contributes to the development of aphids with wings, which can transmit the virus more easily to new host ...
This injury can cause the tree to release a sweet honeydew, thought to attract wasps that can parasitize the weevil within its acorns. [citation needed] Honey bees sometimes collect this substance, in addition to honeydew from aphids feeding in oak forests, and use it to produce oak honey, an unusual varietal sold by specialist beekeepers. [17 ...
As a result, the companion collard plants attract more aphid parasitoids, which kill aphids in both the collard and the nearby sugar beets. [ 36 ] In a related study, ethylene and other compounds released by rice plants in response to brown planthopper feeding attracted a facultative parasitoid that parasitizes brown planthopper eggs.
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