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If the pathogen infects the plant while fruits are still on it, they will prematurely drop. Other symptoms include discoloration of leaves as well as the seeds. The lesions on the fruit evolve to become soft rot spots that produce a heinous odor. The fruit can even get to the point of breakdown. [3] Known hosts: Ananas comosus (pineapple) Araceae
Pineapple black rot, also known as butt rot, base rot, or white blister, is a disease caused by Ceratocystis paradoxa (teleomorph) (Thielaviopsis paradoxa: [1] anamorph). C. paradoxa also causes disease in a variety of other tropical plants such as banana, coconut, and sugarcane making it a somewhat dangerous pathogen. [ 2 ]
Pineapple black rot: Chalara paradoxa = Thielaviopsis paradoxa Ceratocystis paradoxa [teleomorph] Leaf spot Curvularia eragrostidis Cochliobolus eragrostidis [teleomorph] Phytophthora heart rot Phytophthora cinnamomi Phytophthora nicotianae var. parasitica = Phytophthora parasitica. Root rot Pythium spp. Pythium arrhenomanes. Seedling blight ...
Leaf spots can vary in size, shape, and color depending on the age and type of the cause or pathogen. Plants, shrubs and trees are weakened by the spots on the leaves as they reduce available foliar space for photosynthesis. Other forms of leaf spot diseases include leaf rust, downy mildew and blights. [4]
Fruitlet core rot (FCR) is the disease of a pineapple fruit, from the pathogen Penicillium funiculosum that is brown or black in color and rotted in the center. [2] FCR is associated with multiple pathogens, such as Candida guilliermondi in addition to P. funiculosum, however, leathery pocket (LP) and interfruitlet corking (IFC) are only associated with P. funiculosum. [2]
The pineapple [2] [3] (Ananas comosus) is a tropical plant with an edible fruit; it is the most economically significant plant in the family Bromeliaceae. [ 4 ] The pineapple is indigenous to South America , where it has been cultivated for many centuries.
Reasons Your Snake Plant's Leaves Are Drooping. Stressful conditions, such as overwatering and inadequate sunlight, can cause snake plants' leaves to lose their vertical stance.
Onion shows a leaf and stem infection. In tobacco black shank affects the roots and basal stem area, but all parts of the plant can become infected. [5] Damping off symptoms can be observed in young seedlings. The first above ground symptom that will be observed is the wilting of plants, which leads to stunting. Roots will be blackened and decayed.