Australia

Gemstar LC

registration_expired
Sipcam - insecticide
59042

GENERAL INSTRUCTIONS
Gemstar LC has been specially designed for use in IPM systems. It is a biological insecticide and hence its efficacy is dependent on environmental conditions, application and feeding behaviour of the pest. For this reason, when environmental, crop microclimatic or other conditions are unfavorable for Gemstar LC, control of the pest may be below expectations. The product acts slowly and can take up to 8 days to kill larvae. Speed of kill and efficacy are dependent on climatic conditions. Warm conditions favor the performance of Gemstar LC as the larvae will be feeding actively and moving around. Daytime temperatures of 25°C to 35°C are ideal for Gemstar LC performance. Gemstar LC needs to be ingested to be effective. Good coverage of the target area, where the larvae are feeding, is essential. Gemstar LC will not control larvae that do not feed on the treated area, e.g. larvae sheltered in the corncob or lettuce heart. The level of control achieved depends on size, location and feeding behaviour of larvae at the time of application as well as coverage of the target area. Affected larvae may take several days to die, during which time feeding is reduced, but some feeding damage may occur. Do not rely solely on Gemstar LC control for Helicoverpa where there is nil tolerance of feeding damage. Gemstar LC has short residual activity and retreatment may be required at 2 - 3 day intervals depending on egg counts and crop growth rates. As Gemstar LC is readily degraded in the presence of ultra violet light, application in the late afternoon or early evening will provide the maximum opportunity for larvae to ingest the product before it is degraded.

MIXING AND APPLICATION
Mixing: Shake the container well before using. Water pH should be neutral (pH 7.0) for optimum performance. Partially fill the spray tank with clean water and add the required volume of product to the water while agitating. Top up the tank with clean water to the required volume. Gemstar LC should be applied as soon after mixing as possible. The virus can be rendered inactive if the mixture is left to stand overnight.

Application: Thorough coverage of the target area is essential. Apply in sufficient carrier and using suitable application parameters (nozzles, pressure, boom height, speed, swath width, etc.) to ensure thorough coverage of the target area.

COMPATIBILITY
Gemstar LC may be mixed with many commonly used products, including the larvicides Larvin* 375 and Thiodan* EC. Products should be added to the spray tank separately and the spray mixture used promptly. For the latest information on compatibility of Gemstar LC with other products, contact Sipcam Pacific Australia Pty Ltd or your local reseller.

 

Effective
Crops
Sorghum
BBCH
0 - 0
Registred norm
200 - 375
Preharvest Interval
-
Crops
Winter wheat
BBCH
0 - 0
Registred norm
375 - 375
Preharvest Interval
-
Crops
Spring wheat
BBCH
0 - 0
Registred norm
375 - 375
Preharvest Interval
-
Crops
Spring barley
BBCH
0 - 0
Registred norm
375 - 375
Preharvest Interval
-
Crops
Winter barley
BBCH
0 - 0
Registred norm
375 - 375
Preharvest Interval
-
Crops
Spring oats
BBCH
0 - 0
Registred norm
375 - 375
Preharvest Interval
-
Crops
Winter oats
BBCH
0 - 0
Registred norm
375 - 375
Preharvest Interval
-
Crops
Winter rye
BBCH
0 - 0
Registred norm
375 - 375
Preharvest Interval
-
Crops
Spring rye
BBCH
0 - 0
Registred norm
375 - 375
Preharvest Interval
-
Crops
Winter triticale
BBCH
0 - 0
Registred norm
375 - 375
Preharvest Interval
-
Crops
Spring triticale
BBCH
0 - 0
Registred norm
375 - 375
Preharvest Interval
-
Crops
Alfalfa, Lucerne
BBCH
0 - 0
Registred norm
375 - 375
Preharvest Interval
-
Crops
Potatoes
BBCH
0 - 0
Registred norm
375 - 375
Preharvest Interval
-
Crops
Cotton
BBCH
0 - 0
Registred norm
500 - 500
Preharvest Interval
-
Crops
Sweet corn
BBCH
0 - 0
Registred norm
500 - 500
Preharvest Interval
-