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The saliva they inject is very toxic to the leaves, twigs, branches and fruit of citrus trees. [6] They soon begin to develop their own round, waxy covers. [3] The male scale insect develops similarly until after the second moult when it becomes oval and darker than the female, measuring about one millimetre in diameter with an eccentric cover.
The citrus blackfly is found on over 300 host plant species, [4] but citrus trees such as lemon, orange and pomelo are most heavily infested. Noncitrus trees and shrubs, when they grow by themselves, are not normally attacked by this insect, but they may be when they grow close to heavy infestations on citrus.
Aleurocanthus woglumi, citrus blackfly, which, in spite of its color, is a whitefly that attacks citrus; Aleyrodes proletella, cabbage whitefly, is a pest of various Brassica crops. Bemisia tabaci, silverleaf whitefly, is a pest of many agricultural and ornamental crops.
Lepidosaphes beckii also known as purple scale, mussel scale, citrus mussel scale, orange scale, comma scale and mussel purple scale [2] is a scale insect that is a pest of Citrus trees. The small insects attach themselves to leaves, fruits and small branches and cause injury by sucking the tree's sap.
Another approach in citrus is to eliminate ants from the trees, either by preventing the ants from climbing the trunks or by destroying their nests. This allows natural predators to flourish and keep the scale insects under control, although this may lead to a temporary increase in the production of sooty mould on the honeydew that the ants no ...
The major breakthroughs on psyllid management that were developed include three types of antisense oligonucleotides (double-stranded RNA, single stranded antisense oligos (like FANA [25] [26] and Morpholio's) [27] [28] [29] that can target the Asian citrus psyllid, and the bacterial pathogen, [30] without harming other beneficial insects, like ...