John Cawly - Plant Diseases - Roses - Home/Garden

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Expert Profile: John Cawly

Expertise: I can help with identification and possible treatment of plant diseases that affect houseplants and horticultural species, to include both biological (fungal, bacterial, viral, parasitic etc.) and environmental/cultural (watering, potting media, etc.) aspects.

Experience in the area
Practical experience with a wide variety of houseplants and greenhouse plants, including cacti, euphorbia, african violets, amaryllus, and many others.

Organizations
American Phytopathology Society
American Society of Plant Biologists
American Society for Virology

Publications
Molecular Plant Microbe Interactions
Proceedings of the National Academy of Science (in print)
Rhodora -- Journal of the New England Botanical Society
Allelopathy Journal

Education/Credentials
BS, Southern Illinois University - Biological Sciences
MS, Southern Illinois University -- Biological Sciences - Genetic Engineering Specialization
PhD, University of Missouri Columbia -- Plant Microbiology and Pathology
(Viral Diseases specialization/Biotechnology Emphasis)

	View Past Answers	View Detailed Ratings

Average Ratings
Prestige Points: 2580
Knowledge	9.88 Best of the best
Clarity of Response	9.88 Best of the best
Timeliness	9.94 Best of the best
Politeness	10.0 Best of the best
Number Of Questions (in Past 24 Hours)		0
Max Questions to be Asked (in 24 Hour period)		1
Total Questions (since joining AllExperts)		276

Recent Reviews from Users

Knowl	Clarity	Time	Politeness	Date
10	10	10	10	04/29/08
10	10	10	10	04/24/08
10	10	6	10	04/28/08
10	10	10	10	04/17/08
10	10	10	10	03/26/08

User Comments

thank you very much!
(Ellen on 04/29/08)

Wow!!!!! - I am so thrilled to get this kind of detailed answer and really understand in depth about scale infestation - I suspect this on palm but un
(Dear John, on 03/26/08)

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	View Past Answers	View Detailed Ratings

Recent Answers from John Cawly

2008-04-28 Black eyed susans ( RUDEBEKIA): Hi Debra, The most common pests/diseases that affect Rubeckia species are: aphids, which suck sap from the plants and coat the leaves with sticky honeydew; goldenglow sawfly, the larvae of which may...

2008-04-25 aphis: Hi Amir, There are many methods that can be used to control aphid populations. Some are as simple as spraying with a powerful water hose. Many people encourage beneficial insects such as ladybird...

2008-04-24 Shrub Disease: Once thought to be aphids, adelgids are fluid-feeding insects that feed on coniferous species. The egg sacs of these insects look like the tips of cotton swabs clinging to the undersides of the branches...

2008-04-23 whould you please help me ?: Hi Amir, Thank you for the photos. The plants you have are azaleas, and they appear to be healthy to me. The leaves may have a small amount of powdery milder, but that is not a problem. These plants...

2008-04-21 plant disease: Hi Gennie, Have you had an unusually wet spring? These conditions provide ideal conditions for fungal spore germinations. The aloe plants also can have ring spots or black spots that are related to...