alex ignatov  

33 Reputation Points

Bio: I work with plant pathogenic microorganisms in Russia since 1990, including epidemiology, genetics, genomics, taxonomy and detection of plant pathogenic bacteria of genera Xanthomonas, Pseudomonas, Clavibacter, Rathayibacter, Ralstonia + Enterobacteria, some fungi, TuMV and CaMV. Other topics are plant resistance to the pathogens in brassicas (Xcc races, R genes, molecular markers, breeding). Current position: Research Director, R&D Center "PhytoEngineering" (Plant Pathogen Diagnostics)

Email :  an.ignatov@gmail.com
Location: Moscow region, Russia Joined Date: May 13, 2016


Recently answered questions:
Pole bean leaves started wilting right after I sprayed them with neem oil
0 points    Posted:April 18, 2019

fragaria ananassa/ california /xylillea fastidiosa
0 points    Posted:October 27, 2018

0 points    Posted:October 24, 2018

White raised spots on Kale. Does anyone know what this is?
0 points    Posted:January 31, 2018

Bush Beans Contender: Identification of Plant Disease
0 points    Posted:November 17, 2017

Pecan affected by Xantomonas Campestris: is it possible?
0 points    Posted:October 15, 2017

My collards have got a brownish yellow colour on older leaves. What could be the reason? They are not growing as well
0 points    Best Answer    Posted:June 27, 2017

Collard plant has yellow brown leaves
1 point    Posted:May 22, 2017

Recently asked questions:
Do you know the pathogen or toxin that cause such blight symptoms on the cucumber leaves?
0 points    363 views    Posted:November 14, 2017

Potato plants have specific symptoms that look to me as virus, what is it really?
0 points    681 views    Posted:August 15, 2017

Corn has stripes on leaves - is it physiology or disease?
0 points    621 views    Posted:June 27, 2017

What can cause such disease on winter wheat?
0 points    492 views    Posted:April 20, 2017

What can cause such disease?
0 points    416 views    Posted:April 18, 2017

What can cause such disease?
0 points    334 views    Posted:April 1, 2017

Leafspot on winter wheat, what is the pathogen?
0 points    676 views    Posted:April 1, 2017

What can cause surface maceration of cucumber fruit in greenhouse?
0 points    507 views    Posted:February 12, 2017

Recent comments:

November 18, 2017- @Ravishankar, sorry, I made many pics of sugarbeet plants with P. aptata, but beans were not my...

October 16, 2017- Mirko, the pathogen goes systemic into veins. You can try to cure plants by all possible plant...

June 27, 2017- Can you describe the problem and make pics from closer distance? Is it a single tree or common...

June 27, 2017- It looks like secondary roots ready to grow. You can add some compost to cover them.

May 19, 2017- Carolyn, if this is a yellow liquid, can you check the plant tissue under with yellow spot? Is...

May 17, 2017- I agree to Dr. Narayana, it looks like weather - related damage. We need to know temperature...

May 17, 2017- @RJ Bishop, How many days have you kept the seeds in wet paper towels? Seeds could be too old...

April 4, 2017- Ravishankar, many thanks for idea! I have asked Syngenta people for better pictures.