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Giperdax

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Active Ingredient: Spodoptera frugiperda multiple nucleopolyhedrovirus(SfMNPV)


Concentrations: 1.5×10^9PIB/ml; 7.5×10^9PIB/ml

Formulation: SC


Target Pest: Spodoptera frugiperda (Fall armyworm)

General Information

Giperdax is a highly specific naturally occurring virus of Spodoptera frugiperda that infects and kills only larvae of the Spodoptera frugiperda. without impacting the environment, human being and other organisms. Larvae ingesting the virus stop feeding within several days, and become pale and lethargic, and die as the virus replicates throughout their bodies. Virus released from dead larvae may infect other larvae feeding nearby. Because the virus must be ingested by larvae in order to initiate infection, thorough spray coverage is essential for good insect control. The speed of activity of Giperdax is also dependent on climatic conditions. Larvae can take up to 8 days to die. Daytime temperature of 25to 35are ideal for the activity of Giperdax. Giperdax will not control larvae that do not feed on treated areas, e.g. when larvae are feeding in protected feeding sites such as inside cotton bolls, lettuce hearts, bean pods, corn cobs and flowers, so good coverage plus actively feeding larvae are the key factors in ensuring maximum performance of Giperdax. For this reason, apply Giperdax to coincide with optimum environmental conditions for application and larval activity, such as periods of high humidity and warm(18) conditions. Under sub-optimal conditions where application cannot be delayed, increasing application frequency and volume, and decreasing droplet size, and inclusion non-ionic surfactant, should be considered.

Mixing

The homogenously diluted solution can be made by premixing Giperdax with a small amount of water and vigorously agitating before adding to the tank. Spray water pH should be neutral(pH7.0). Spray water pH above 8 may damage the virus and performance will be reduced. If mixing with other pesticides or foliar fertilizers in water, add Giperdax to the spray tank after the other products are thoroughly diluted. Giperdax should be applied as soon as possible after mixing. The virus can be rendered inactive if the mixture is left to stand overnight.

Application Rate

Crops

Target Pest

Rates and Dilution Rates

Application Method

Corn, Sweet Corn, Cotton, Sugarcane, Peanut and Vegetable Crops etc

Spodoptera frugiperda.

50-200ml/ha

Giperdax can be applied at the low label rate (50ml)as preventative, or when pest pressure is low. If pest pressure is high, or the overlapping is serious, Giperdax can be applied at high label rate(200ml) OR by mixing or rotate with another insecticide that will provide more rapid knock-down of Spodoptera frugiperda.

Multiple sprays at low rates and short intervals are likely to provide better control than a single spray at high rate.

1. The dilution rates depend on local habit and experience of farmers and spray equipment.

2. If possible,

the less the water amount is, the better the control efficacy will be.

Mist/Fine Spray

Application Method

Giperdax can be applied using standard ground sprayers, aerial application, and overhead sprinkler chemigation. Apply Giperdax in sufficient water to obtain thorough coverage of the crop canopy without excessive runoff. Actual application volume will depend on the type of spray equipment used. It is advised to use nozzles with Ultra-low volume spraying to ensure thorough coverage of the target area.

Application Timing

Giperdax must replicate within the host larva in order to be effective, so Giperdax is slower to kill larvae compared to many chemical insecticides. Several days may elapse between treatment and cessation of larval feeding due to virus infection. Larvae may cause considerable damage as they continue to feed even if they eventually succumb to virus infection. Therefore, Giperdax applications should be targeted against FIRST OR SECOND INSTAR LARVAE in order to avoid the occurrence of extensive damage. The subsequent applications should be made at 3-6 days interval depending on the eggs counts and crop growth rate due to the short residual activity of virus.

Compatibility

Giperdax can be applied alone against Spodoptera frugiperda if Spodoptera frugiperda is a key pest or when non-target pests do not reach economic threshold. However, Giperdax is highly compatible with the majority of herbicides, insecticides fungicides and foliar fertilizers in order to provide a broader spectrum of control(including more rapid know-down effect), to kill moths and eggs as well as larvae, or to control Spodoptera frugiperda larvae resistant to chemical insecticides. Giperdax will infect and kill both susceptible and resistant larvae. Ensure that the mixture has a pH of 7 or less. Mixing Giperdax with alkaline substances will damage the virus.

Rain Fastness and Use of Spray Adjuvants

The majority of virus uptake by larvae occurs within 1 hour post-application. For this reason, it is best to avoid applying Giperdax if heavy rain is expected within one hour following applications. However, do not delay application if only moderate rain is expected, or heavy rain is not imminent. Use of spreader/sticker and ultraviolet screening agent can enhance the performance of Giperdax. Additional protection, as well as enhanced spray deposition and rain fastness, may be obtained by using certain latex, mineral oils and powdered skim milk. Avoid mixing Giperdax with silicone-based adjuvants intended only as spreader. Such compounds may interfere with the natural ability of the virus to stick to plant surfaces.

Storage and Handling

Always store this product in the original sealed container in a cool, dry place. Bioactivity may be impaired by storage above 35℃. In order to extend the shelf life, the product should be kept at 4℃ or below and avoid UV radiation. Giperdax can also be frozen for longer term storage(several years) if need.



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