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Deporaus marginatus, commonly known as the mango leaf-cutting weevil, [1] is a species of leaf weevil in the beetle family Attelabidae. [ 2 ] [ 3 ] It is a light tan colour with black elytra (wing cases), [ 4 ] and is found in tropical Asia where it is a pest of mango ( Mangifera indica ).
If the white outer growth is removed or disturbed, the disease appears as purple-brown blotches on older leaves and fruit. [2] [12] Infection may also cause distortion of young leaves, as the infection usually begins on the underside of the leaf. [12] Necrotic lesions appear on the upper side of the leaf, and the leaves tend to curl downward. [7]
The mango mealybug (Drosicha mangiferae) is a pest of mango crops in Asia. The nymphs and females suck plant sap from inflorescences, tender leaves, shoots and fruit peduncles. [ 2 ] As a result, the infested inflorescences dry up, affects the fruit set, causing fruit drop.
Mangifera indica, commonly known as mango, is an evergreen [3] species of flowering plant in the family Anacardiaceae. [4] It is a large fruit tree, capable of growing to a height and width of 30 m (100 ft). [5] There are two distinct genetic populations in modern mangoes – the "Indian type" and the "Southeast Asian type". [6]
In the fields of horticulture and botany, the term deciduous (/ d ɪ ˈ s ɪ dʒ u. ə s /) [1] [2] means "falling off at maturity" [3] and "tending to fall off", [4] in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, after flowering; and to the shedding of ripe fruit.
The mango trees on his Homestead farm usually provide enough fruit for the whole year, up to 1,000 pounds. This year, he notes, “there were about 10 mangoes on the trees.”
Annual autumn leaf drop in temperate zones is caused by the abscission of the mature leaves from the growth season in response to the approach of cold winter weather. Abscission (from Latin ab- 'away' and scindere 'to cut') is the shedding of various parts of an organism, such as a plant dropping a leaf, fruit, flower, or seed.
Aug. 12—Q: My neighbor and I share a healthy cottonwood on our property line. It seems that all of a sudden it has started dropping some yellow leaves. Isn't it too early for the tree to start ...