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VIII.
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”.
Table 1:
Summary of Crops trialed and used with Codacide Oil and Plant Protection Products
Apples
Cotton
Loganberries
Roses
Amenity
Cucumber
Lucerne
Salads
Aubergine
Cyclamen
Maize
Sisal
Barley
Daffodils
Mango
Sour Cherries
Bay Trees
Date Palms
Mange Tout
Soya Bean
Bedding Plants
Eggplant
Melons
Snow Peas
Beetroot
Field Beans
Oats
Spring Barley
Blackcurrants
Forestry
Olive
Spring Oats
Bracken
Fremartia
Onions
Spring Rape
Brassicas
French Beans
Orchids
Stone Fruit
Broadbeans
Fodder Beet
Ornamentals
Strawberries
Broccoli
Field Peas
Palm Oil
Sugar Beet
Brussel Sprouts
Flax
Parsley
Swede
Buxus
Fuchias
Parsnips
Sweet Corn
Cabbage
Garlic
Pasture
Sweet Potatoe
Calabrese
Geraniums
Peppers
Sunflowers
Cauliflower
Gooseberries
Peas
Tayberries
Cassava
Golf Course
Pears
Tea
Carrots
Grapes Vines
Eating
Plums
Top Fruit
