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The signs of the virus begin to become visible when the leaves at the top of the plant begin turning yellow and eventually fall off. [6] This usually occurs in the upper third of the canopy and death of the plant usually occurs soon after the leaves wilt and die. [3]
Young leaves, may experience chlorotic spotting which may eventually turn into a mosaic or mottle pattern (“Maize Dwarf Mosaic Virus,” n.d.). Later in the growing season, the mosaic pattern may bleed into a general yellowing of the leaf and eventually areas of red streaks or blotches may appear if night time temperatures are consistently ...
In the early stages, MLND causes long yellow stripes on leaves. Unlike maize streak virus disease though, the streaks of MLND are wider. As the disease advances, the maize leaves become yellow and dry out from the outside edges towards the midrib. MLND can also cause dwarfing and premature aging of the plants. Finally, the entire plant dries ...
Cornus kousa is a small deciduous tree 8–12 m (26–39 ft) tall, in the flowering plant family Cornaceae. Common names include kousa, kousa dogwood, [2] Chinese dogwood, [3] [4] Korean dogwood, [4] [5] [6] and Japanese dogwood. [2] [4] Synonyms are Benthamia kousa and Cynoxylon kousa. [7] It is a plant native to East Asia including Korea ...
Conopholis americana, the American cancer-root, bumeh or bear corn, is a perennial, [3] non-photosynthesizing (or "achlorophyllous") parasitic plant. It is from the family Orobanchaceae and more recently from the genus Conopholis but also listed as Orobanche, native but not endemic to North America. When blooming, it resembles a pine cone or ...
At the northern end of its range, heights of 30–33 feet are more typical. Hot, humid summer weather is necessary for new growth to harden off in the fall. The maximum lifespan of C. florida is about 80 years. [5] The flowers are individually small, inconspicuous, and hermaphroditic, with four, greenish-yellow petals (not bracts) 4 mm (0.16 in ...
The leaves are compound pinnate, 20–30 cm long, with 5-11 (mostly 7-9) alternately arranged leaflets; each leaflet broad ovate with an acute apex; 6–13 cm long and 3–7 cm broad, with an entire margin and a thinly to densely hairy underside. In the fall, the leaves turn a mix of yellow, gold, and orange. [citation needed]
Rhopalosiphum maidis, common names corn leaf aphid and corn aphid, is an insect, and a pest of maize and other crops.It has a nearly worldwide distribution and is typically found in agricultural fields, grasslands, and forest-grassland zones.