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Puccinia asparagi is the causative agent of asparagus rust.It is an autoecious fungus, meaning that all stages of its life cycle – pycniospores, aeciospores, and teliospores – all develop upon the same host plant [1] [2] [3]. [4]
More commonly known as a “rust,” this pathogen typically affects cotton leaves, which can decrease the quality of the boll at time of harvest. As large percentages of cotton in the United States are resistant to various rust varieties, there is little economic importance to this disease. In places where rust is prevalent, however, growers ...
Puccinia horiana is a microcyclic, autoecious rust, meaning that the fungus has two known spore stages: teliospores and basidiospores, as well as no known alternate host. [6] Similar to other microcyclic rusts, two-celled teliospores produce unicellular basidiospores which are then dispersed via air currents.
The use of resistant maize hybrids is the best way to manage P. sorghi. There are two types of resistance that exist. [9] The first is partial resistance which results in fewer rust spots by reducing germination rate. This type of resistance makes P. sorghi less severe by slowing down development of number of urediniospores. The other type of ...
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Release predatory insects like lacewings or ladybugs on outdoor or greenhouse plants. Spray the plants with organic soap or neem oil. Just remember that sprays can harm pollinators and other ...
Some rust species form perennial systemic infections that may cause plant deformities such as growth retardation, witch's broom, stem canker, galls, or hypertrophy of affected plant parts. Rusts get their name because they are most commonly observed as deposits of powdery rust -coloured or brown spores on plant surfaces.
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