DecisPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

A broad spectrum pyrethroid insecticide for the control of aphids, caterpillars and a range of other pests in a wide range of agricultural and horticultural crops.

Because decis is a unique single-isomer pyrethroid, it is not only highly effective, but is selective and can be used at lower rates. It will not harm beneficials such as lacewings and will not affect bees if used at the right rates and at the right time. decis also has a longer duration of activity to ensure the maximum protection for your crop. Unlike many other pyrethroids, decis is specifically approved for use in flowering crops.

Can be used on a very wide range of crops
Effective against all kinds of insects
Selective for beneficials
Safe for bees when used at the right time and right rate
Can be used in flowering crops
Can be used with a wide range of tank-mixes

To get the best from decis it is important that you spray at the appropriate threshold both for the crop and the insect pest in question (See product manual for further information).

Spray in the evening or very early morning when fewer bees are foraging
Take care to prevent drift towards hives in the treated field
Avoid triazole fungicide tank-mixes if treating flowering crops
Give local beekeepers as much notice as possible

BROAD BEAN, FIELD BEAN, COMBINNING PEA, VINING PEA
Maximum individual dose: 300 ml/ha
Maximum total dose: 600 ml/ha/crop
Latest time of application: 7 days before harvest

CAULIFLOWER
Maximum individual dose: 300 ml/ha
Maximum total dose: 900 ml/ha/crop
Latest time of application: 7 days before harvest

BRUSSELS SPROUT, CABBAGE
Maximum individual dose: 300 ml/ha
Maximum total dose: 600 ml/ha/crop
Latest time of application: 7 days before harvest

LETTUCE (outdoor)
Maximum individual dose: 250 ml/ha
Maximum total dose: 750 ml/ha/crop
Latest time of application: 7 days before harvest

MUSTARD (spring), OILSEED RAPE (spring)
Maximum individual dose: 300 ml/ha
Maximum total dose: 900 ml/ha/crop
Latest time of application: End of flowering (not less than 45 days before harvest)

MUSTARD (winter), OILSEED RAPE (winter)
Maximum individual dose: 300 ml/ha
Maximum total dose: 1200 ml/ha/crop
Latest time of application: End of flowering (not less than 45 days before harvest)

SUGAR BEET, SWEDE, TURNIP
Maximum individual dose: 300 ml/ha
Maximum total dose: 300 ml/ha/crop
Latest time of application: 30 days before harvest

WHEAT (winter), BARLEY (winter) and OATS (winter)
Maximum individual dose: 250 ml/ha
Maximum total dose: 750 ml/ha/crop
Latest time of application: Up to and including early dough stage (GS 83) (not less than 30 days before harvest)

WHEAT (spring), BARLEY (spring) and OATS (spring)
Maximum individual dose: 250 ml/ha
Maximum total dose: 500 ml/ha/crop
Latest time of application: Up to and including early dough stage (GS 83) (not less than 30 days before harvest)

APPLES and PEARS
Maximum individual dose: 350 ml/ha
Maximum total dose: 1050 ml/ha/crop
Latest time of application: 7 days before harvest

RASPBERRIES
Maximum individual dose: 500 ml/ha
Maximum total dose: 1500 ml/ha/crop
Latest time of application: 7 days before harvest

CUCUMBER (protected), TOMATO (protected)
Maximum individual dose: 70 ml/100 litres water
Maximum total dose: Maximum number of treatments 3 per crop
Latest time of application: 7 days before harvest

PEPPER (protected)
Maximum individual dose: 50 ml/100 litres water
Maximum total dose: Maximum number of treatments 3 per crop
Latest time of application: 7 days before harvest

AMENITY VEGETATION (outdoor), ORNAMENTAL PLANT PRODUCTION (outdoor), ORNAMENTAL PLANT PRODUCTION (protected)
Maximum individual dose: 70 ml/100 litres water
Maximum total dose: Maximum number of treatments 3 per crop

The following Non-Reducible Aquatic Buffer Zones must be observed:
Amenity vegetation (outdoor), barley (spring), barley (winter), broad bean, Brussels sprout, cabbage, cauliflower, combining pea, field bean, lettuce (outdoor), mustard (spring), mustard (winter), oats (spring), oats (winter), oilseed rape (spring), oilseed rape (winter), ornamental plant production (outdoor), sugar beet, swede, turnip, vining pea, wheat (spring), wheat (winter).
Aquatic buffer zone distance (metres): 7

Other Specific Restrictions:
When used on crops with a greater than 5m non-reducible aquatic buffer zone this product must not be applied via hand-held equipment.
To protect non-target insects/arthropods when applied to cereals, respect an untreated buffer zone of 5 meters to non-crop land.

DIRECTIONS FOR USE
IMPORTANT: This leaflet is approved as part of the label. All instructions on this leaflet and on the label should be read carefully in order to obtain successful results from the use of this product.

RESTRICTIONS
DO NOT spray crops suffering from drought or other physical or chemical stress.
DO NOT spray wet crops liable to run-off. Some varieties of ornamentals are particularly sensitive to chemical sprays, so treat a small number of plants first to determine the reaction.
Do not apply this product in tank mixture with a triazole-containing fungicide when bees are likely to be actively foraging in the crop. Consult manufacturer.
PROTECT FROM FROST
STORE IN A SAFE DRY PLACE designated as an agrochemical store.
Decis is rainfast 1 hour after spraying. It can be applied in frosty weather provided foliage is not covered with ice.
Very high temperatures, greater than 35°C (greater than 95°F) may reduce efficacy or persistence.
Avoid spraying within 5 m of the field boundary to reduce effects on non-target insects or other arthropods when applied to the following crops: Amenity vegetation (outdoor), broad bean, Brussels sprout, cabbage, cauliflower, combining pea, field bean, lettuce (outdoor), mustard (spring), mustard (winter), oilseed rape (spring), oilseed rape (winter), ornamental plant production (outdoor), sugar beet, swede, turnip and vining pea.
The best available application technique, which minimises off-target drift should be used to reduce effects on non-target insects or other arthropods when applying to apple, pear and raspberry.

PESTS CONTROLLED
The possible development of pests resistant to Decis cannot be excluded or predicted. Where such resistant strains occur, Decis is unlikely to give satisfactory control. When certain insects may develop resistance to Bayer products and since such circumstances are beyond our control, Bayer will be under no liability for any loss or damage whatsoever.
Opomyza spp. (yellow cereal fly), aphids, whitefly, Phyllotreta spp., brassica flea beetle, pea and bean weevil, pea moth, pollen beetle, cabbage seed weevil, brassica pod midge, cabbage stem flea beetle, rape winter stem weevil, caterpillars (various), Psylla spp. (apple and pear suckers), Cydia pomonella (codling moth), tortrix moth complex, capsid bugs, scale insects, mealy bugs, cutworms (noctuid larvae), thrips, sawfly, raspberry beetle, pea midge.

Qualified minor use recommendation:
Based on limited data control of Phyllotreta spp. in spring oilseed rape would also be expected from applications of Decis applied in accordance with the Crop Specific Information section.

CROP SPECIFIC INFORMATION
APPLICATION
Sprayers should be THOROUGHLY CLEANED before use and filters and jets checked for damage and blockages.
200-1500 litres of water per hectare depending on crop and pest.
A pressure of 2-3 bar (30-40 psi) is recommended.
Apply as a MEDIUM quality spray (as defined by BCPC). Decis is not systemic and it is, therefore, important that the amount of water is sufficient to permit good spray coverage of the foliage, particularly in beans, peas, glasshouse crops and ornamentals. Use only nozzles designed and recommended for the volume to be applied.

Wheat and Barley
For the control of Barley Yellow Dwarf Virus (and some control of Opomyza). Where BYDV has been a problem: For crops drilled before mid-September, spray when aphids are first found in the crop or in mid-October. If the crop is sprayed before early October, a second spray in early November may be beneficial. For crops drilled mid-September to early October, spray any time from mid-October to
early November.
Where BYDV has not been a problem or if drilled after early October: Spray any time from late October to early November if aphids found or on specialist advice. In mild winters further sprays may be needed.
Dose: 200 ml/ha in 200 litres of water.
For the control of Opomyza (yellow cereal fly). Apply at start of egg hatch (normally late January to February) or according to specialist advice. Crops most at risk are those drilled before mid-October in fields with a history of Opomyza.
Dose: 250 ml/ha in at least 200 litres of water.

Wheat, Barley and Oats
For the control of aphids on ears. Apply when two-thirds or more of heads are infested and numbers increasing (equivalent to 5 aphids per head).
Dose: 250 ml/ha in at least 200 litres of water.

Brussels sprouts, cabbage, cauliflower, swedes and turnips.
For the control of caterpillars (and some control of aphids †† and whitefly).
For Non-routine treatment; apply at the first stage of attack or as a preventative spray. Dose: 300 ml/ha in at least 400 litres of water.
For pre-harvest clean-up, a reduced dose may be used when only short persistence of the product is required and applied 7 days prior to harvest.
Dose: 150 ml/ha in at least 400 litres of water.
For the control of brassica flea beetle (Phyllotreta spp.), apply when damage is first seen.Repeat at 14-day intervals if necessary.
Dose: 300 ml/ha in 200-400 litres of water.
Refer to important information box for maximum total dose for each crop type.

Peas and Bean (broad, and field)
For the control of pea and bean weevil, apply at first signs of adult damage (leaf notching). Repeat after 2-3 weeks if prolonged and heavy attack.
Dose: 300 ml/ha in 200-400 litres of water.
Pea midge; Apply sprays when local warnings indicate for control of pea midge and improvement in pod numbers. A second application may be necessary if the risk remains high.
Dose: 250 ml/ha in 200 - 400 litres of water.

Peas
For the control of pea moth (and some control of pea aphids). Apply according to the pea moth pheromone trapping system in conjunction with specialist advice.
Dose: 250 ml/ha in at least 400 litres of water.

Sugar Beet
For the control of flea beetle, apply at the first signs of damage.
Dose: 300 ml/ha in 200-400 litres of water.

Spring Oilseed Rape and Mustard
For the control of pollen beetle. Apply at green bud stage: If pollen beetle numbers are at threshold levels. A second application may be necessary if pest attack is prolonged.
Dose: 300 ml/ha in at least 200 litres of water.
For the control of cabbage seed weevil, brassica pod midge. Apply at green to yellow bud stage if cabbage seed weevil numbers are at threshold levels. Repeat during flowering if pest attack is prolonged. Applications during flowering will also give control of brassica pod midge.
Dose: 300 ml/ha in at least 200 litres of water when applied during flowering.
Qualified Minor use recommendation*:
For the control of brassica flea beetle (Phyllotreta spp.), apply when damage is first seen.
Repeat at 14-day intervals if necessary.
Dose: 300 ml/ha in 200-400 litres of water.
This recommendation is based on limited effectiveness data.

Winter Oilseed Rape
For some control of Beet Western Yellows Virus (BWYV), Best results will be obtained by spraying at the 2-4 leaf stage, but spraying at 5-10 leaves can give good control.
Dose: 250 ml/ha in 200 litres of water.
For control of cabbage stem flea beetle and useful control, of rape winter stem weevil. Apply when adults are seen to be causing leaf damage, usually late August to October. Spray for flea beetle larvae once they can be found in leaf stalks, usually late October/early November. A second spray may be necessary to control later hatches.
Dose: 250 ml/ha in 200 litres of water.
For control of pollen beetle, Apply at green bud stage: If pollen beetle numbers are at threshold levels. A second application may be necessary if pest attack is prolonged.
Dose: 300 ml/ha in at least 200 litres of water.
For control of cabbage seed weevil, brassica pod midge, Decis can be applied at any time during the flowering period if cabbage seed weevil numbers are at threshold levels, but best results will be obtained from applications made at the end of flowering on the main raceme (GS 49), usually 75% petal fall. Later applications may not prove effective as Decis is primarily a contact insecticide. There is no spray threshold for brassica pod midge. Treatment decision should be based on previous l ocal experience. Applications for seed weevil will also control brassica pod midge.
Dose: 300 ml/ha in at least 200 litres of water.

Lettuce (outdoor):
For the control of cutworms. Apply when pest first seen. Use a second spray if necessary.
Dose: 250 ml/ha in at least 1000 litres of water.

HORTICULTURAL CROPS
Apples:
For the control of caterpillars, apple sucker, apple grass aphid. Apply at green cluster.
For the control of codling and tortrix moth, sawfly, late capsid. Apply at about mid- June or 10-14 days after light or pheromone traps first record a steady emergence of moths.
A further application may be applied three weeks later. A third spray may be necessary in late July or early August if tortrix moths are a problem.
Dose: 350 ml/ha in at least 200 litres of water or High Volume: 20 ml per 100 litres of water

Pears
For the control of pear sucker# (overwintered adults, eggs and nymphs). Apply Preblossom - At any stage between bud burst and white bud or Post-blossom - At first signs of pest build-up, any time from petal fall onwards. Do not apply during blossom period.
Dose: 350 ml/ha in at least 200 litres of water or High Volume: 20 ml per 100 litres of water.

Raspberries:
For the control of raspberry beetle. Apply when about 80% of the blossom is over (usually mid June). (One spray when pink fruit is seen is usually adequate although for high quality dessert fruit two sprays may be applied). A further application may be made when the first fruit is colouring, (usually about 2 weeks later).
Dose: Conventional volume only: 500 ml/ha in 1000 litres of water.

Glasshouse crops :-cucumbers, tomatoes, and ornamental plant production (ornamentals and pot plants):
For the control of whitefly‡, scale insects, aphids, caterpillars, mealy bugs. Apply when pest first seen. For whitefly, thoroughly wet plants, especially leaf undersurface.
Repeat application as required:
Dose: High volume only 70 ml per 100 litres of water.

Glasshouse crops :- peppers
For the reduction of caterpillars: apply when pest first seen. Repeat application as required:
Some effect on whitefly‡, scale insects, aphids and mealy bugs may also be seen.
Dose: High volume only 50 ml per 100 litres of water.

Ornamentals plant production (outdoor ornamentals, trees, shrubs and nursery stock) and amenity vegetation (outdoor ornamentals, trees and shrubs)
For the control of whitefly‡, scale insects, caterpillars, capsids, thrips, aphids, mealy bugs. Apply when pest first seen. For whitefly, thoroughly wet plants, especially leaf under-surface. Repeat as required.
Dose: High volume only 70 ml/per 100 litres of water*.
†† Strains of some aphid species are resistant to many aphicides. Where aphids resistant to products containing pyrethroid insecticides occur, Decis is unlikely to give satisfactory control.
‡ Glasshouse whitefly strains resistant to one or more groups of insecticides are widespread. Where strains resistant to products containing pyrethroid insecticides occur, Decis is unlikely to give satisfactory control.
Note: resistant strains of the tobacco whitefly are also known to occur.
# Pear suckers resistant to one or more groups of insecticides are widespread. Where strains resistant to products containing pyrethroid insecticides occur, Decis is unlikely to give satisfactory control. Where repeat treatments are necessary use different active ingredients.

RESISTANCE MANAGEMENT STRATEGY
Total reliance on one pesticide will hasten the development of resistance; pesticides of different chemical types or alternative control measures should be included in a planned programme.
Alternating insecticides with different modes of action is a recognised anti-resistance strategy and Decis should always be used in alternation with other insecticides of a different mode of action where available. Decis should always be applied at the recommended rate of use and in sufficient water volume to achieve the required spray penetration into the crop and uniform coverage necessary for optimal pest control.

MIXING
Prior to mixing EC formulations, such as Decis, it is particularly important to thoroughly wash out the sprayer using a recommended detergent. Solvents in EC formulations can remove pesticides adhering to the tank and other parts of the sprayer.
Shake well before use. Add the required quantity immediately at the beginning of filling the spray tank with water. Keep the spray agitation in action and add the required quantity of water. Continue agitation until spraying is completed. After spraying, thoroughly wash out the spray tank.