VEGETABLE growers now have a new insect control option following the approval for Syngenta’s new insecticide, Minecto One.

This delivers control of chewing pests with added incidental control of sucking insects and is approved for use in the main brassicas – broccoli Brussels sprouts, cabbage and cauliflower, along with swedes and turnips. For root crops it is available immediately for both carrots and parsnips, along with a number of niche root crops.

Importantly, the registration for the active ingredient, cyantraniliprole, also covers outdoor lettuce, along with edible podded peas and vining peas.

In brassicas and lettuce the primary target will be caterpillars, including silver-Y and plutella, on the label. However, the multi-pest activity has been shown to give control of sucking pests, including whitefly, thrips and leaf miners. There is also useful control of later generations of cabbage root fly, pointed out Syngenta.

For carrots, parsnips and other approved root crops, use is targeted at control of adult carrot fly to restrict egg laying and subsequent larvae damage to roots. In trials, control of both the larvae and adults has been observed.

Syngenta’s insecticides technical manager, Dr Max Newbert, highlighted that good control of first and second generation carrot fly with it could alleviate the need for pyrethroid sprays until later in the season, to target third generation fly. This would reduce insecticide resistance pressure in carrot fly, as well as aphid populations.

Growers of edible podded and vining peas would use applications for Pea Moth control, timed according to pheromone trap monitoring, he added.

Minecto One’s application rate, 185 g/ha, applies for all crops, with growers urged to always use the full rate as a key anti-resistance strategy. “For growers looking to supply the highest quality produce possible, Minecto One has an extremely useful three-day harvest interval in brassica crops and peas. For root crops and lettuce, the harvest interval is seven days,” said Mr Newbert.

“Salad crops have been hit especially hard by caterpillar damage throughout the growing season this year, whilst whitefly has been particularly problematic in all brassica crops going into autumn.

“The xylem mobile systemic activity makes it especially effective in targeting chewing pests to prevent leaf and plant damage. For sucking pests, trials have shown results can be enhanced with the addition of methylated rapeseed oil adjuvant in the tank mix, such as Phase II, for example. That mix has also shown to give a good reduction in aphid numbers.”

Growers can make two applications of Minecto One per crop, with a minimum seven-day interval between sprays, subject to important anti-resistance strategies in accordance with label stipulations.