Phytophthora Root Rot

From: McQueen Landscaping, Berkley, CA
To: Keith Giertych [kgiertych@growthproducts.com]
Subject: Growth Products' ornamental program did its job!

My company has been maintaining a high-end estate with many mature rhododendrons, most of which have been in the ground 10 to 15 years. The rhododendrons began to exhibit die-back and leaf wilting, and several plants died. Shortly thereafter, Phytophthora fungus was diagnosed in the landscaping beds. I immediately started using Growth Products' Companion Biological Fungicide, Essential Plus, and "TKO" Phosphite 0-29-26. One month after the first application the rhodies showed promising new growth. By that summer, the plants once again looked vigorous and healthy, and the following spring the rhododendrons had gorgeous blooms. I have not lost any plants since we started applying Growth Products. And now that the plants are healthy, I feed them with Growth Products' 14-7-14 All Purpose fertilizer to keep the plants in tip-top shape.

Wilted Rhododendron
Corled and dying rhododendron
Extremely wilted leaves.
Tips of new growth curled and dying.

 

Rhododendron
Rhododendron
A remarkable improvement can be seen after using Growth Products.
Leaves are shiny & healthy, and plants had nice blooms.

 

Growth Products Disease Program
Product
Rate
Application
Notes
Essential® Plus 1-0-1
1 quart per 100 gallons water
Fall - Apply two applications 30 days apart.
Spring - apply two applications 30 days apart.
Thoroughly "sprench" planting bed to cover leaves, stems, and roots thereby attacking the fungus pathogens wherever they are present.
Companion® Biological Fungicide
1 quart per 100 gallons water
"TKO" Phosphite 0-29-26
1 quart per 100 gallons water
Hydro-Max - An All Natural Wetting Agent
1 quart per 100 gallons water
14-7-14 All Purpose Fertilizer
1 quart per 100 gallons water
Include 14-7-14 in spray tank mix when trees are no longer under stress.

Special thanks for sharing their stories:

McQueen Landscaping Berkeley, CA
Vern McQueen
Phone: (510) 821-9815