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Eriophyes tiliae is a mite that forms the lime nail gall or bugle gall. [2] It develops in a chemically induced gall ; an erect, oblique or curved distortion rising up from the upper surface of the leaves of the lime (linden) trees (genus Tilia ), such as the large-leaved lime tree Tilia platyphyllos , the common lime tree Tilia × europaea , etc.
Musgraveia sulciventris is a large stink bug found in Australia, sometimes known as the bronze orange bug. It is considered a pest, particularly to plants in the citrus group. [ 1 ] Bronze orange bugs suck the sap from trees, which causes the flowers and fruit to fall.
Green stink bug on a lily. The green stink bug's color is typically bright green, with narrow yellow, orange, or reddish edges. It is a large, shield-shaped bug with an elongate, oval form and a length between 13 and 18 mm. It can be differentiated from the species Nezara viridula by its black outermost three antennal segments.
The scale insects excrete honeydew on which bees, wasps, ants and other insects feed. Sooty mould fungus often grows on the honeydew and this decreases the area of leaf available for photosynthesis, spoils the appearance of the plant and reduces the marketability of fruit. [3] It is especially damaging to young trees after transplanting. [4]
Citrus greening is distinguished by the common symptoms of yellowing of the veins and adjacent tissues (hence the "yellow dragon" name given by observing Chaozhou farmers as early as the 1870s [1]); followed by splotchy mottling of the entire leaf, premature defoliation, dieback of twigs, decay of feeder rootlets and lateral roots, and decline in vigor, ultimately followed by the death of the ...
Nezara viridula, commonly known as the southern green stink bug (USA), southern green shield bug (UK) or green vegetable bug (Australia and New Zealand), is a plant-feeding stink bug. Believed to have originated in Ethiopia , it can now be found across the world. [ 1 ]
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In turf grass, the tips and blades of the leaves turn yellow with brown tips, which contrasts strongly with healthy leaves. As the leaves die back, the aphids move on to fresh foliage. [7] The greenbug is the vector of several plant viruses including barley yellow dwarf virus, sugarcane mosaic virus, maize dwarf mosaic virus and millet red leaf ...