This cherry limb was cut leaving a large exposed section of wood that is now colonized by wood rotting fungi. Would wound paints have helped? You get the same result if you do or if you don't use them.
Bordeaux contains copper sulfate and spray lime mixed just before application with water.
Jay W. Pscheidt.
Bordeaux contains copper sulfate and spray lime mixed just before application with water.
At high rates, Bordeaux mix can injure young plant tissue as has happened to this hazelnut shoot.
Workshop on how to calibrate an airblast sprayer.
There are many different adjuvants in the market place that can help break the surface tension of water and spread out spray materials on plant surfaces. The same ones may also be used to help stick them to plant surfaces. Just a few are shown here.
It looks like a lot of different disease control products but actually there are only a handful or so of active ingredients. Read the label!
Jay W. Pscheidt, 2012.
Three different products but they all have the same active ingredient - chlorothalonil.
Jay W. Pscheidt, 2012.
Oil based material can have dual action against some disease and insects.
Jay W. Pscheidt, 2012.
A few of the fungicides available for use in the home maket.
Lots of different sprayers for the home market. The key with any of them is to get excellent coverage of all sides of the foliage.
Jay W. Pscheidt, 2012.
Colored dyes are generally used with seed treatments to more easily identify when an application has been made to seed.
Jay W. Pscheidt, 2021.
In this section
Some of the various oils that are or have been available for commercial use.
Some of the various oil products that are or have been available in small packaging for the home market.
Use caution when using spray program that call for both oil and sulfur. Together they are phytotoxic to plants. These grapes were sprayed with oil and then a leaky nozzle hit them with a sulfur solution resulting in burnt leaves.
Fungicide not fertilizer. Note there are many other brand names for the same active ingredient.
Fertilizer not fungicide.
USDA and accredited certifiers work together to enforce organic standards, ensuring a level playing field for producers and protecting consumer confidence in the integrity of the USDA Organic Seal.
Jay W. Pscheidt, 2021.
Acceptable products that meet organic standards are listed by the Organic Materials Review Institute (OMRI).
The information herein is supplied with the understanding that no discrimination is intended and that listing of commercial products, necessary to this handbook, implies no endorsement by the authors or the Extension Services of Oregon, Washington, or Idaho. Criticism of products or equipment not listed is not implied or intended.
Jay W. Pscheidt, 2008.
