What are the classification of plant diseases?
According to this criterion, plant diseases are classified into two types: infectious (biotic) diseases, which are caused by eukaryotes, prokaryotes, parasitic higher plants, viruses/viroids, nematodes, and protozoa, and noninfectious (abiotic) diseases, which are caused by different extreme environmental conditions [5 …
Which fungicides are used against diseases caused by oomycetes?
Folio Gold 440 SC, FOLIO GOLD is used primarily against diseases caused by oomycete fungi, such as downy mildews and late blights, FOLIO GOLD is used primarily against diseases caused by oomycete fungi, such as downy mildews and late blights.
What are the plant diseases caused by fungi?
Leaf Diseases Caused by Fungi and Bacteria
- Leaf Spots. Leaf spots (other names: anthracnose, scab, leaf blotch, shot hole) are usually rather definite spots of varying sizes, shapes and colors.
- Leaf Blights.
- Powdery Mildew.
- Downy Mildew.
What are the common diseases of plants?
Common Plant Diseases
- Black Spot.
- Other Leaf Spots.
- Powdery Mildew.
- Downy Mildew.
Which disease is caused by ustilago?
corn smut, plant disease caused by the fungus Ustilago maydis, which attacks corn (maize) and teosinte plants. The disease reduces corn yields and can cause economic losses, though in Mexico the immature galls of infected ears of corn are eaten as a delicacy known as huitlacoche.
What are some important plant disease caused by oomycetes?
The oomycetes, also known as “water molds”, are a group of several hundred organisms that include some of the most devastating plant pathogens. The diseases they cause include seedling blights, damping-off, root rots, foliar blights and downy mildews.
What are the three types of plant diseases?
What are some important plant diseases caused by Oomycetes?
Which fungus produces Oospore?
Oospores and zygospores are the result of sexual reproduction in the Oomycota and Zygomycota, respectively. An oospore forms when an oogonium (female gamete) is fertilized by an antheridial (male gamete) nucleus; a characteristically thick wall and food reserves help to ensure survival.
What are some other fungi that cause plant disease?
Other fungal-like organisms can also cause plant disease. Myxomycetes are commonly called slime molds. Oomycetes are commonly called water molds and include Pythium spp., an organism that is not host-specific and that causes root rot and damping off. Another oomycete is Phytophthora spp.
What are the classification of fungal pathogens in plants?
Fungi are of large numbers and diversity, only a classification of some of the most important plant pathogenic genera is presented here. 1. Fungus-Like Organisms or Pseudofungi (The ‘Lower Fungi’): “Unicellular, plasmodial, colonial, very simple multi-cells, phagotrophic, i.e., feeding by engulfing food.”
Why are oomycetes not classified as fungi?
Oomycetes were originally grouped with fungi due to similarities in morphology and lifestyle. However, molecular and phylogenetic studies revealed significant differences between fungi and oomycetes which means the latter are now grouped with the stramenopiles (which include some types of algae ).
What are the different types of fungi in Ascomycota?
Fungi in Ascomycota are commonly called sac fungi and include these species: Fungi in Basidiomycota are commonly called club fungi and include these species: Other fungal-like organisms can also cause plant disease. Myxomycetes are commonly called slime molds.