Question

1. Ambrosia (and some other) beetles tunnel under the bark of trees to lay their eggs. In addition to invading the plant tissue, speculate why these beetles may be of importance to plant pathologists (hint – read a little about Dutch Elm Disease).

2. Describe how each of the following parasitizes insects: Entomophthora muscae, Cordyceps sinensis, Entomophage maimaiga

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Answer 1

Answer:       This question i have to write pointswise,because it's easy to understand you.....

1):

• The ambrosia beetles are the interactions that are associated with susceptibility to what are typically good fungi and atypical relationships with healthy trees.
• The ambrosia beetles favor trees that are dead or stressed.
• The pathogens of both the ambrosia and bark beetle associated diseases that have symbiosis relationship.
• Conditions associated with ambrosia and bark beetles comprise some of the most significant problems.

2):

• Entomophthora muscae is a species of pathogenic fungus in the order Entomophthorales, which causes a fatal disease in flies.
• A dead fly at the top of a plant was killed by the fungus Entomophthora muscae.
• Cordyceps Sinensis is an Ascomycete fungus that parasitizes moth caterpillar of species Hepialis aromoricanis by its mycelia and forms stroma or fruiting body.
• Club shape mycelia is the head of CS, and the caterpillar moth forms its body.
• Cordyceps sinensis also called DongChongXiaCao (winter worm, summer grass).
• Many of the Entomophagous fungi only infect one or a few closely related species, such as Entomophaga maimaiga, a specific pathogen of gypsy moth, Lymantria dispar.
• Entomophaga maimaiga is an insect that causes pathogenic fungal disease, which is endemic.
• Entomophaga maimaiga is unable to penetrate the cuticle, or the fungus cannot survive within the hemocoel.

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