I have worked under the same protocol at various electronic firms I have sold contract mfg. to.
It provides for a structure that is very strenuous when things go awry
which includes increasing sampling to assure quality and or an order for
further product improvement.
The event with you clients should have triggered via their CRM (Customer response management)... the above plus
an audit of the quality of the very batch of product that your clients used.
6 sigma champions root cause analysis.
This means there should be a report that states what the exact underlying cause of the crop damage is.
If not, they are in variance to their quality assurance program which is a matter of consequence regarding regulation.
In the electronics world being in variance to your documented QA program can cost you access to markets.
Training of those that represent the products.
What training had the Fieldman regarding Callisto for Red Raspberry.
Note that Miller had seen issues with Callisto tank mixes and Meeker with up to 27 percent toxicity.
It is not the original natural chemical. read mesotrione_history...
Review of mesotrione for red raspberry was passed over in that other
lesser crops satiosfied review process. ... read end of
mesotrione-response.pdf in shared.
Failure to a do adequate testing to establish cause post event. see Link Testing services price list. OSU $90 per pathogen.
Special Assays $290 per hour.
Regarding Root Rot
Several species of the soilborne fungus Phytophthora can cause root rot in raspberries and other cane fruit crops.The most important species is *Phytophthora fragariae var.rubi* (P. fragariae var. rubi), which is considered a major pathogen that causes root rot and wilt in raspberries.
Other species that can infect raspberries include:
Phytophthora rubi:The predominant cause of root rot and wilt in raspberries.It's considered a cool weather pathogen and outbreaks often start small and increase in size, especially down slopes.
Phytophthora gonapodyides:A second species that can infect raspberries, particularly the cultivar "Cascade Bounty".
Phytophthora parasitica:Another species that can cause root rot in raspberries.
The
pathogen can remain dormant in the soil for up to 10 years and can
cause serious damage to the entire plant, including severe wilting.Red raspberries are generally susceptible to Phytophthora, with some varieties being more tolerant than others.
Has the formula been fixed or has there been continuing
development? Patents suggest there are different ways to formulate
with various degrees of repeatability.
Studies Suggest their may be variance in product year to year... Miller
report Meeker possibly shown to be more susceptible.
Crops that were damaged by callisto tank mixes showed signs of root rot /
phytopthora which is caused by various organisms which have
varying optimal conditions.
Rasberry Cultivars that are suitable for machine harvesting in the PNW
therefore one might think these have all been tested for phytotoxicity.
Tests that should have been performed for EU and USA There is supposed to be a degree of collaboration between the various countries on testing requirements.