General Information


Read all Directions for Use carefully before applying.

SONOMA 40WSP fungicide is a systemic, protectant and curative fungicide recommended for the control of specific diseases mentioned on the label. Optimum disease control is achieved when the fungicide is applied in a regularly scheduled preventative spray program.


SONOMA 40WSP is packaged in water-soluble pouches. Do not allow pouches to become wet prior to adding to the spray tank. Do not handle the pouches with wet hands or wet gloves. Always reseal overwrap bag to protect remaining unused pouches. Do not remove water-soluble pouches from overwrap except to add directly to the spray tank.

Use Rate Determination

Carefully read, understand and follow label use rates and restrictions. Under low disease conditions, minimum label use rates per application can be used while maximum label rates and shortened spray schedules are recommended for severe or threatening disease conditions. For proper application, determine the number of acres to be treated, the recommended label use rate and the gallonage to be applied per acre. Prepare only the amount of spray solution required to treat the measured acreage. Careful calibration of spray equipment is recommended prior to use.

Rotation Crops

Crops on the label may be planted immediately after the last treatment. Do not plant other crops within 30 days after the last application.



Thorough coverage sprays generally result in optimum disease control. To achieve good coverage use proper spray pressure, gallonage per acre, nozzles, nozzle spacing and tractor speed. Consult spray nozzle and accessory catalogues for specific information on proper equipment calibration.


Apply in a minimum of 10 gallons of water per acre. Avoid application under conditions when uniform coverage cannot be obtained or when excessive spray drift may occur.


Best control of labeled diseases is achieved when SONOMA 40WSP is applied on a 7-to-10-day application schedule.

SONOMA 40WSP is a systemic fungicide and does not redistribute with rainfall after application. Application equipment spray nozzles should be adjusted to apply a uniform spray throughout the entire tree canopy.

The following use recommendations are to be used as guidance in determining the amount of SONOMA 40WSP to be used per 100 gallons spray or per acre. Refer to specific tree fruit use directions to determine actual use rates for the control of labeled diseases.

Concentrate Spray Applications: SONOMA 40WSP should be used at the recommended use rate per acre in either dilute or concentrate sprays.

Dilute, Thorough Coverage Applications: Dilute thorough coverage applications are based on the amount of spray solution required to thoroughly wet trees until spray run-off. The following specific use directions for apples and mayhaws utilizes a 400 gallon per acre dilute basis and the specific use directions for stone fruits utilize a 250 gallon per acre dilute basis.

Thorough spray coverage is essential.

Limitations, Restrictions, and Exceptions



Follow brown rot blossom blight schedule making additional applications at 7- to 10-day intervals as long as needed.


Applications may be made up to the day of harvest.

Restricted Entry Interval

24 hours