StewardPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

A water dispersible granule containing 300 g/kg indoxacarb for the control of caterpillars in cabbage, cauliflower, broccoli, apples, pears and various protected fruiting vegetables and ornamentals.

INSECT CONTROL 

Steward is an oxadiazine insecticide used for the control of larvae of various
Lepidopteran (caterpillar) species. All larval stages are controlled however adult stages are not controlled. Activity is by ingestion and contact. The product also shows ovicidal efficacy against some species. Paralysis of the pest occurs within a few hours of exposure and results in cessation of movement and feeding. Final control takes 1-2 days.

Insect resistance
When insecticides with the same mode of action are used repeatedly over several years to control the same species in the same field, naturally-occurring resistant strains may survive a correctly applied treatment, propagate, and become dominant in that field. An insect can be resistant if the product applied under recommended conditions does not work well. Some insects (e.g. Cydia pomonella) have developed resistance to commercially available products. When resistance occurs, recommended rates fail to suppress the pest population below economic thresholds.
It is important that the grower considers the following:
• Alternate the use of Steward with products with a different mode of action than indoxacarb.
• Monitor insect populations and apply Steward when locally determined economic thresholds are reached. More than one application may be necessary for any infestation.
• Follow the directions for use as mentioned on this label, regarding dose, interval and optimum application timing.

CROPS 

Steward may be applied to the following crops:
Cabbage, cauliflower and broccoli
Pests controlled: Cabbage whites (Pieris spp.), Cabbage moth (Mamestra brassicae),
Garden pebble moth (Evergestis forficalis), Cabbage leafroller (Clepsis spectrana) and Diamondback moth (Plutella xylostella).
Dose: 85 g/ha in 200 l/ha using boom sprayer.
Timing: Treat when first caterpillars are detected or 7-10 days after trapping of the first adults in pheromone traps. Subsequent
treatments may be applied at 8 –14 day intervals as required.
Protected cucumber (gherkin), courgette (zucchini), marrow, winter squash,
pumpkin, melon, aubergine, tomato and pepper
Pests controlled: Golden twin-spot moth (Chrysodeixis chalcites), Beet armyworm (Spodoptera exigua), Cabbage moth (Mamestra brassicae), Tomato moth (Lacanobia oleracea), Silver y-moth (Autographa gamma) and
other Plusia species and leafrollers.
Dose: 0.0125% w/v (12.5 g/100 L of water)
Timing: Treat as soon as the first caterpillars (damage) are detected.
Subsequent treatments may be applied at 8 –14 day intervals as required.

MIXING
Before using Steward, make sure that the spraying equipment is clean. Steward mixes easily with water, but the following mixing procedure should be followed:
Quarter fill the spray tank with clean water, start the agitation and add the required quantity of Steward directly to the tank without prior creaming. Continue agitation while topping up the tank and while spraying.