GAT Decline 2.5 EC

Manufacturer
Others
Category
Insecticides
Registered until
N/A
Registration number
04422
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GAT Decline 2.5 EC is a broad-spectrum insecticide for the control of aphids, caterpillars and a range of other pests in a wide range of agricultural and horticultural crops.

DIRECTIONS FOR USE
Specific pests controlled:
Wheat and Barley: For the control of Barley yellow dwarf virus (and some control of Opomyza). Dose: 200 ml/ha For the control of Opomyza (yellow cereal fly).
Dose: 250 ml/ha rate

Wheat, Barley and oats: For the control of Aphids on ears.
Dose: 250 ml/ha

Brussels sprouts, cabbage and cauliflower: For the control of Caterpillars (and some control of aphids and whitefly).
Brassica flea beetle (Phyllotreta spp.).
Dose: 300 ml/ha

Peas and Beans (broad, and field): For the control of pea and bean weevil. Dose: 300 ml/ha
Pea midge.
Dose: 250 ml/ha

Peas: For the control of Pea moth (and some control of pea aphids).
Dose: 250 ml/ha

Sugar Beet: For the control of Flea beetle.
Dose: 300 ml/ha

Spring Oilseed Rape: For the control of Pollen beetle. Dose: 300 ml/ha For the control of Cabbage seed weevil, brassica pod midge Applications during flowering will also give control of brassica pod midge.
Dose: 300 ml/ha

Winter Oilseed Rape: For some control of Beet Western Yellows Virus (BWYV).
Dose: 250 ml/ha
For control of Cabbage stem flea beetle and useful control of rape winter stem weevil.
Dose: 250 ml/ha
For control of Pollen beetle.
Dose: 300 ml/ha
For control of Cabbage seed weevil, brassica pod midge. Applications for seed weevil will also control brassica pod midge.
Dose: 300 ml/h

Apples: For the control of caterpillars, apple sucker, apple grass aphid, codling and tortrix moth, sawfly, late capsid.
Dose: 350 ml/ha

Protected cucumbers, tomatoes, flower/foliage and woody ornamentals: For the control of Whitefly‡, scale insects, aphids, caterpillars, mealy bugs.
Dose: High volume only 70 ml per 100 litres of water.

Protected peppers: For the reduction of caterpillars: apply when pest first seen
Dose: High volume only 50 ml per 100 litres of water 

CEREALS:
-Wheat and Barley: Barley yellow dwarf virus (BYDV) aphids + some control of Opomyza

Barley yellow dwarf virus (BYDV) aphids:
Timing / Notes: Where BYDV has been a problem: For crops d drilled before mid-September spray when aphids 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.
Rate of use: 200 ml/ha
Water volume: 200l water/ha

Yellow cereal fly (Opomyza):
Timing / Notes: For 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.
Rate of use: 250 ml/ha
Water volume: 200 litres water/ha

The latest time of application
on wheat and barley for control of BYDV aphids and Opomyza is up to and before soft dough stage (GS 85), not less than 30 days before harvest.

-Wheat, barley and oats: aphids on ears

Aphids on ears:
Timing / Notes: Apply when two-thirds or more of heads are infested and numbers increasing (equivalent to 5 aphids per head).
Rate of use: 250 ml/ha
Water volume: 200 litres water/ha

The latest time of application on wheat, barley and oats for control of aphids on ears is up to and before soft dough stage (GS 85), not less than 30 days before harvest.

BRUSSELS SPROUT, CABBAGE, CAULIFLOWER:
- Brussels sprout, cabbage, cauliflower: caterpillars (and some control of aphids and whitefly, brassica flea beetle (Phyllotreta spp.)

Caterpillars (and some control of aphids and whitefly):
Timing / Notes: For Non-routine treatment apply at the first stage of attack or as a preventive spray.
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 harvest.
Rate of use: 150 ml/ha
Water volume: 400 litres water/ha

Brassica flea beetle (Phyllotreta spp.):
Timing / Notes: apply when damage is first seen. Repeat at 14-day intervals if necessary. Maximum 2 applications for Brussels sprout and cabbage, maximum 3 applications for cauliflower.
Rate of use: 300 ml/ha
Water volume: 200-400 litres water/ha

The latest time of application on Brussels sprout, cabbage and cauliflower for control of aphids, whitefly and Phyllotreta spp. is 7 days before harvest.

PEAS and BEANS:
-Broad bean, field bean: pea and bean weevil, pea midge

Pea and bean weevil:
Timing / Notes: apply at first signs of adult damage (leaf notching). Repeat after 2-3 weeks if prolonged and heavy attack.
Rate of use: 300 ml/ha
Water volume: 200-400 litres water/ha

Pea midge:
Timing / Notes: 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.
Rate of use: 250 ml/ha
Water volume: 200-400 litres water/ha

The latest time of application on broad beans and field beans for control of pea and bean weevil and pea midge is 7 days before harvest.

-Combining pea, vining pea: pea moth (and some control of pea aphids)

Pea moth (and some control of pea aphids):
Timing / Notes: apply according to the pea moth pheromone trapping system in conjunction with specialist advice
Rate of use: 250 ml/ha
Water volume: at least 400 litres water/ha

The latest time of application on peas for control of pea moth and pea aphids is 7 days before harvest.

SUGAR BEET:
Sugar beet: flea beetle

Flea beetle:
Timing / Notes: apply at first signs of adult damage.
Rate of use: 300 ml/ha
Water volume: 200-400 litres water/ha

The latest time of application on sugar beet for control of flea beetles is 30 days before harvest.

OILSEED RAPE
Spring oilseed rape: pollen beetle, cabbage seed weevil, brassica pod midge

Pollen beetles:
Timing / Notes: apply at green bud stage: if pollen beetle numbers are at threshold levels. A second application may be necessary if pest attack is prolonged.
Rate of use: 300 ml/ha
Water volume: at least 200 litres water/ha

Cabbage seed weevil and brassica pod midge:
Timing / Notes: 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.
Rate of use: 300 ml/ha
Water volume: at least 200 litres water/ha when applied during flowering.

The latest time of application on spring oilseed rape for control of pollen beetle, cabbage seed weevil, brassica pod midge is end of flowering (GS69), not less than 45 days before harvest.

-Winter oilseed rape: Beet Western Yellow Virus (BWYV), cabbage stem flea beetle, rape winter stem weevil, pollen beetles, cabbage seed weevil, brassica pod midge

Beet Western Yellow Virus (BWYV):
Timing / Notes: best results will be obtained by spraying at the 2-4 leaf stage, but spraying at 5-10 leaves can give good control.
Rate of use: 250 ml/ha
Water volume: 200 litres water/ha

Cabbage stem flea beetle and useful control of rape winter stem weevil:
Timing / Notes: 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.
Rate of use: 250 ml/ha
Water volume: 200 litres water/ha

Pollen beetles:
Timing / Notes: apply at the green bud stage: if pollen beetles are at thresholds levels. A second application may be necessary if pest attack is prolonged.
Rate of use: 300 ml/ha
Water volume: at least 200-300 litres water/ha

Cabbage seed weevil and brassica pod midge:
Timing / Notes: GAT Decline 2.5 EC can be applied at any time during 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 at the main raceme (GS 67), usually 75% petal fall. Later applications may not prove effective as GAT Decline 2.5 EC is primarily a contact insecticide. There is not spray threshold for brassica pod midge. Treatment decision should be based on previous local experience. Applications for seed weevil will also control brassica pod midge.
Rate of use: 300 ml/ha
Water volume: at least 200 litres water/ha

The latest time of application on winter oilseed rape for control of Beet Western Yellow Virus (BWYV), cabbage stem flea beetle, rape winter stem weevil, pollen beetles, cabbage seed weevil, brassica pod midge is end of flowering (GS69), not less than 45 days before harvest.

APPLES
Apples: caterpillars, apple sucker, apple grass aphid, codling moth, tortrix moth, sawfly, late capsid

Caterpillars, apple sucker, apple grass aphid, tortrix moth, sawfly, late capsid:
Timing / Notes: For caterpillars, apple sucker and apple grass aphid apply at green cluster. For codling moth, tortrix moth, sawfly and late capsid apply at about mid-June or 10-14 days after light of pheromone traps first record of 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.
Rate of use: 350 ml/ha
Water volume: at least 200 l/ha
Or high volume: 20 ml per 100 litres water

The latest time of application on apples for control of caterpillars, apple sucker, apple grass aphid, codling moth, tortrix moth, sawfly, late capsid is 7 days before harvest.

GLASSHOUSE CROPS:
-Cucumbers, tomatoes and flower / foliage and woody ornamentals: whitefly‡, scale insects, aphids, caterpillars, mealy bugs

Whitefly, scale insects, aphids, caterpillars, mealy bugs:
Timing / Notes: apply when pest first seen. For whitefly, thoroughly wet plants, especially leaf under-surface. Repeat application as required.
Rate of use / Water volume: high volume only 70 ml / 100 litres water

The latest time of application on protected cucumbers and tomatoes for control of whitefly, scale insects, aphids, caterpillars and mealy bugs is 7 days before harvest.

-Peppers: caterpillars

Caterpillars:
Timing / Notes: For the reduction of caterpillars apply when pest first seen. Repeat application as required. Some effects on whitefly, scale insects, aphids and mealy bugs may also be seen.
Rate of use / Water volume: high volume only 50 ml / 100 litres water

The latest time of application on protected pepper for control of caterpillars is 7 days before harvest.

MIXING:
Prior to mixing GAT Decline 2.5 EC 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 Wash out container thoroughly after spraying.

Registered for culturesRateBBCHPreharvest Interval
Winter wheat250 ml1 - 85
Winter barley250 ml1 - 85
Winter oats250 ml1 - 85
Spring wheat250 ml1 - 85
Spring barley250 ml1 - 85
Spring oats250 ml1 - 85
Brussels sprouts300 ml07
Cabbage300 ml07
Beans300 ml07
Peas300 ml07
Cauliflower300 ml07
Winter rape300 ml1 - 69
Spring rape300 ml1 - 69
Sugar beets300 ml030
Apples300 ml07
Cucumbers0 ml07
Tomatoes0 ml07
Peppers0 ml07