Horticulture recommendations

Apples
Caterpillars, apple sucker, apple grass aphid

At green cluster

Normal: 350 ml/ha in at least 200 litres of water

High: 20 ml/100L of water

First: About mid-June or 10-14 days after light or pheromone traps first record a steady emergence of moths.

Subsequent: 3 weeks later.  A third spray may be needed in late July or early August if tortrix moths are a problem.

Normal: 350 ml/ha in at least 200 litres of water

High: 20 ml/100L of water

Glasshouse crops : cucumbers, peppers, tomatoes, & ornamental plant production (ornamentals & pot plants)
Whitefly$, scale insects, aphids, caterpillars, mealy bugs

First: When pest first seen.  For whitefly, thoroughly wet plants, especially leaf under-surface.

Subsequent: Repeat as required.

70 ml/100L of water

Hops
Damson-hop aphid**

First: When aphid migration begins, usually late May or early June, rising to a maximum in late June or early July.

Subsequent: Repeat with usually 5 further sprays at 10-14 day intervals.

Normal:
Early season sprays
400 ml in 500L of water/ha
Mid-season sprays
800 ml in 1000L of water/ha
Late season sprays
1.2L in 1500Lof water/ha
High: 80 ml/100L of water

Lettuce (outdoor)
Cutworms

First: When pest first seen

Use a second spray if necessary

250 ml/ha in at least 1000 litres of water

Ornamentals plant production (outdoor ornamentals, trees, shrubs and nursery stock) and amenity vegetation (outdoor ornamentals, trees & shrubs)
Whitefly$, scale insects, caterpillars, capsids, thrips, aphids, mealy bugs

When pest first seen.  For whitefly, thoroughly wet plants, especially leaf under-surface.

Repeat as required

70 ml per 100L of water

Pears
Pear sucker#
(overwintered adults, eggs and nymphs)

Pre-blossom: At any stage between bud burst and white bud.

Post-blossom: At first signs of pest build-up, any time from petal fall onwards.  Do not apply during blossom period.

Normal: 350 ml/ha in at least 200L of water

High: 20 ml per 100L of water

Plums
Caterpillars, damson-hop aphids**, sawfly*

At white bud or cot split.  Where aphids are a problem spray before pest causes curling of leaves.

Normal: 800 ml/ha in at least 200L of water

High: 80 ml/100L of water

First: According to specialist advice, normally in mid-June

Subsequent: After 3 weeks

Normal: 500 ml/ha in at least 200L of water

High: 25 ml/100L of water

Raspberries
Raspberry beetle

First: When about 80% of the blossom is over (usually mid June). (1 spray when pink fruit is seen is usually adequate although for high quality dessert fruit 2 sprays may be applied).

Subsequent: When the first fruit is colouring (usually about 2 weeks later).

600 ml/ha in 1000L of water