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An emulsifiable concentrate containing 25 g/L (2.6% w/w) esfenvalerate . A pyrethroid insecticide for the control of aphids and reduction of BYDV (barley yellow dwarf virus) in wheat and barley, and the control of aphids and other insect pests in potatoes, peas, beans, grassland and a range of vegetable and ornamental crops.

DIRECTIONS FOR USE
IMPORTANT: This information is approved as part of the Product Label. All instructions within this section must be read carefully in order to obtain safe and successful use of this product.

WARNINGS
Always use GOCHA at the recommended dose rate. Damage may result unless all recommendations are carefully carried out. There are no restrictions on following crops.

RESISTANCE MANAGEMENT
Strains of some aphid species are resistant to many aphicides. Where aphids resistant to products containing esfenvalerate occur, GOCHA is unlikely to give satisfactory control. Repeat treatments are likely to result in lower levels of control. Glasshouse whitefly strains resistant to one or more groups of insecticides are widespread. Where strains resistant to products containing pyrethroid insecticides occur, GOCHA is unlikely to give satisfactory control.
As part of a resistance management strategy, alternating with chemicals of a different mode of action, or alternative control methods, should be considered. This is particularly relevant to the uses in protected situations, where a range of ornamental plants may be grown within the same structure and it is important not to rely on only one method of control.

PESTS CONTROLLED
GOCHA contains the highly active synthetic pyrethroid esfenvalerate, which is a contact and ingested pyrethroid insecticide for the control of cereal aphids and the reduction of BYDV (barley yellow dwarf virus) in wheat and barley. It also controls a range of potato aphids preventing direct damage and viral transfer, pea and bean weevil and caterpillars in Brassica crops. Damage due to Bibionids in grassland is reduced.

CROP SPECIFIC INFORMATION
WINTER WHEAT AND WINTER BARLEY
Autumn/Winter use: For the control of cereal aphids and reduction in the spread of BYDV up to GS31.
Rate of use: 165 ml in not less than 200 litres of water per hectare.
Time of application: In high-risk situations such as crops drilled before mid-September, crops following grass or grassy stubbles, or crops in areas with a history of BYDV, the first application of GOCHA should be made when aphids are first seen in the crop. This can be during September or early October. A second application may be necessary at the end of aphid migration, which is normally in late October or November. In later sown and emerging crops, apply in late October or early November, or as recommended according to autumn conditions. A total of two applications of GOCHA can be made in the autumn and winter up to the end of March in the year of harvest.

Spring/Summer use: For the control of summer cereal aphids on crop ears
GOCHA must not be applied to a cereal crop if another product containing a pyrethroid insecticide or dimethoate has been applied to that crop after the start of ear emergence (GS51)
Rate of use: 200 ml in not less than 200 litres of water per hectare.
Time of application: Apply between the onset of flowering and the milky-ripe stage (GS 61- 73, BBCH) when 66% or more ears are infested (equivalent to 5 aphids per ear) and aphid numbers are increasing. When used to control aphids on the ear GOCHA can also give useful control of aphids on the flag leaf. One application of GOCHA can be made on wheat ears up to late milky ripe stage (GS77), or barley ears up to early milky ripe stage (GS73).

SPRING WHEAT AND SPRING BARLEY
Spring use: control of cereal aphids and reduction in spread of BYDV up to crop growth stage 31
Rate of use: 165 ml in not less than 200 litres of water per hectare.
Time of application: Apply in spring if aphids can be found colonising the crop from the two to three leaf stage (GS 12-13). A second application may be required if aphids re-infest the crop before the first node growth stage (GS 31). While useful reductions in aphid numbers and spread of BYDV can be achieved, control may be less than desired where a rapid influx of aphids occurs or where the crop is growing rapidly. For details of thresholds or further information consult your specialist adviser. A total of two applications of GOCHA can be made on spring wheat up to late milky ripe stage (GS77), or spring barley up to early milky ripe stage (GS73).

POTATOES
Control of aphids in ware potatoes
Rate of use: 200 ml in 200-600 litres of water per hectare.
Time of application: Apply as soon as damage is observed when on average 5 aphids per composite leaf are seen. Repeat treatments may be applied at 7-14 day intervals. For further information consult your specialist adviser.
Maximum of 4 applications per crop. The latest timing for application is 7 days before harvest
Control of aphids in seed potatoes to prevent transmission of viruses including Potato virus Y (PVY) & Potato leaf roll virus (PLRV)
Rate of use: 200 ml in 200-600 litres of water per hectare.
Time of application: Apply from crop emergence. Repeat application at 7-14 day intervals. For details of thresholds or further information consult your specialist adviser. Maximum of 4 applications per crop. Application up to 7 days before lifting will protect the crop until lifted.

PEAS & FIELD BEANS
Control of pea and bean weevil
Rate of use: 200 ml in 200-600 litres of water per hectare.
Time of application: Apply when severe damage by adults to growing points is being caused in the early growth stages of the crop. Under high pest pressure a repeat application may be required 2 to 3 weeks after the initial application. Where there is a history of severe weevil damage, a first application made at first sign of adult attack (leaf notching) may be beneficial in some situations.
Maximum of 3 applications per crop. The latest timing for application is 7 days before harvest for vining and edible podded peas and 35 days before harvest for combining peas and field beans.

PEAS
Control of field thrips
Rate of use: 200 ml in 200-600 litres of water per hectare.
Time of application: Apply as soon as field thrips are seen on young plants. Repeat with an interval of 7-10 days. For further information consult your specialist adviser. Maximum of 3 applications per crop. The latest timing for application is 7 days before harvest for vining and edible podded peas and 35 days before harvest for combining peas.

BRUSSELS SPROUTS
Control of cabbage white caterpillars, diamond back moth, and swede midge
Rate of use: 200 ml in 200-800 litres of water per hectare.
Time of application: Apply at the first sign of caterpillar attack or as soon as midge eggs are visible and repeat after 7 – 10 days as required. For further information consult your specialist adviser.
Maximum of 4 applications per crop. The latest timing for application is 7 days before harvest.

CABBAGES, CHINESE CABBAGE, KALE
Control of cabbage white caterpillars, diamond back moth and swede midge
Rate of use: 200 ml in 200-800 litres of water per hectare.
Time of application: Apply at the first sign of caterpillar attack or as soon as midge eggs are visible and repeat after 7 – 10 days as required. For further information consult your specialist adviser
Maximum of 3 applications per crop. The latest timing for application is 7 days before harvest.

CAULIFLOWER, BROCCOLI, CALABRESE, KOHLRABI
Control of cabbage white caterpillars, diamond back moth and swede midge
Rate of use: 200 ml in 200-800 litres of water per hectare
Time of application: Apply at the first sign of caterpillar attack or as soon as midge eggs are visible.
For further information consult your specialist adviser.
Maximum of one application per crop. The latest timing for application is 7 days (cauliflower/broccoli) or 10 days (kohlrabi) before harvest.

GRASSLAND (INCLUDING SEED CROPS), PASTURES, MANAGED AMENITY TURF AND TURF PRODUCTION
Reduction in damage due to Bibionid fly larvae
Rate of use: 300 ml in 600-1000 litres of water per hectare.
Time of application: Apply in the autumn. Do not apply slurry or farmyard manure before application. Rain after application may assist control. For thresholds and further information consult your specialist adviser
Maximum of one application per crop. Treated grass should not be used for grazing or cut for feed within 14 days of treatment. Sports field must not be trodden on for up to 5 days after application.

MIXING AND SPRAYING
Fill the spray tank with clean water and agitate vigorously. Add the recommended quantity of GOCHA and apply immediately. DO NOT leave spray solution standing in spray tank. If a tank mix with another material is required, add GOCHA to the tank first unless instructed otherwise.
GOCHA can be applied in 200-1200 litres of water per hectare as a MEDIUM spray as defined by BCPC. The higher volume of water should be used where crops are dense. Always ensure that foliage is well covered.

COMPATIBILITIES
Before tank mixing, consult the relevant product labels. For further details of compatibilities, consult your agrochemical adviser or Belchim Crop Protection Ltd.