Codacide Oil Improves Uptake and Optimizes Efficacy of Plant Protection Prodcuts (PPPs):
By improving the delivery of PPPs (improved integrity-refer Section III, drift control-Section IV,
rainfastness-Sect, V) and their effective presentation to targets (improved adhesion and retension -
refer Section VI, improved spread and coverage-refer Section VII) Codacide Oil facilitates improved
uptake and extends efficacy of PPPs.
During a three year study, the UK’s Ministry
of Agriculture, Food and Fisheries assessed the effect of
Codacide Oil on the uptake of Dimethoate into the leaves of tomato, cabbage and wheat using Gas
chromatography (gc) analysis and found that Codacide increased both the rate and amount of
uptake into all three leaf types (MAFF, 1999).
Likewise, Baker (1985) showed that the uptake of Chlormequat chloride in the presence of Codacide
Oil was greater than with the standard water based application over 96 hrs following application.
This effect was most significant during the initial 24 hr period following application, when the
average uptake with Codacide Oil was 97% of the dose recovered compared to an uptake of 67%
with the standard application.
The addition of Codacide Oil lowered surface tension and contact
angles, with increased deposition and adhesion of droplets.
Codacide Oil increased deposit spread
by a factor of 8-9 and maintained Chlormequat chloride in its amorphous form (Baker, 1994).
Similarly, the UK’s East Malling Institute
of Horticultural Research (EMIHR, 1988), assessed the foliar
uptake and distribution of Carbaryl on apple leaves.
Apple leaves were treated under laboratory
conditions with labelled carbaryl to compare the adjuvants Codacide with the wetter/spreader Agral.
After one hour the leaves were rinsed with acetone removing the carbaryl which had not yet
entered the surface wax.
It was shown that Codacide greatly improved the distribution and uptake
of Carbaryl with “only 13% of the applied Carbaryl and Agral entered the lea
f between 1 and 24
hours after being on the surface; if Codacide was present 26% would enter the leaf in the first hour”.
Summary of Crops trialed and used with Codacide Oil and Plant Protection Products