A bacterial fungicide, Bacillus subtilis, effective on a wide range of bacterial and fungal diseases of vegetable and fruit crops, such as early and late blight, powdery mildew, fireblight and scab. By colonizing the leaf surface, it prevents the establishment of diseases by outcompeting pathogens for space and nutrition, and by preventing their reproduction.

Application rates for these liquid concentrates vary by disease, but are about 4 oz/gal of water, applied in 5- to 7-day intervals or as needed. Apply in a rotational program with other registered fungicides for best blight control. Most effective for orchards if applied later than any sulfur sprays.

Dry powder Serenade Max is no longer available; please see Companion for a replacement. Serenade is manufactured by Bayer, which is less palatable than ever since the mega-merger with Monsanto: on its way out of our lineup.

Two formulations: Serenade Garden (A), EPA reg. 264-1152, not registered for commercial growers; and Serenade Soil (B), EPA reg. 69592-12, for treatment of soil-borne fungi.

8705 Serenade™
Item Discounted
A: qt (3#) $25.00
  OMRI Certificate
out-of-stock, clearance SOLD OUT
B: 2.5 gal (25#) $150.00
  OMRI Certificate
Log in
to start or resume an order
Problems with logging in?

Additional Information

Plant Protection Last Resorts

These products come with detailed instructions on their labels. Contact us in case you don’t receive the attached booklet or if the label is illegible. For more info on these products, click here.

While we try to stay current with product specifications, product formulations are subject to change without notice.

Use our Sprayers to apply these products. We welcome your suggestions about successful low-impact pest-control methods or products.

Is that pesticide registered in your state?

Each state treats potentially dangerous items differently. Like alcohol and open-carry laws, pesticide registrations are different everywhere. We cannot ship a pesticide to a state where it is not registered.

Before buying or using any pest- or disease-control product, be sure it is registered for use in your state and, if you are a commercial grower, registered for commercial production.

Purdue University has a searchable database of information for most states. You can look up products by name, registration number or active ingredient. Contact information is provided for states that don’t participate in the website.

• Click here for additional information on our pest and disease-control products.

• Click here for a chart summarizing the safety of these pesticides for pollinators.

USDA NOP rule concerning disease and pest control
Caution certified-organic growers:

Before using any of these products for pest or disease control, you must have followed the National Organic Program rule 205.206(e). A product being labeled here as allowed is not sufficient to meet standards for organic certification.

• Click here for more information and the complete text of the rule.

Organic Certification

Inoculants, soil amendments, fertilizers, livestock supplies and pesticides are labeled as:
OMRI: Organic Materials Review Institute. Most state certifying agencies, including MOFGA, accept OMRI approval.
MOFGA: Maine Organic Farmers & Gardeners Association. Reviewed by MOFGA and allowed for use on MOFGA-certified farms. Check with your certifier.
WSDA: The Washington State Department of Agriculture’s Organic Certifying division has approved these products for use in organic agriculture in Washington State. MOFGA has indicated that they will accept products on this list for their certification program. Check with your certifier.
Nat’l List: One-ingredient products on the NOP* List of Allowed Substances (subpart G of the Organic Foods Production Act, sections 205.601-606). Check with your certifier.
AYC: Products whose active ingredient is on the list of allowed substances, but which are not on the OMRI or WSDA list. Ask your certifier.
Not Allowed: A few of the products we list are not allowed for organic production but we think they have a place in sensible agriculture and can be used when certification is not an issue.

• Click here for our list of soil amendments, fertilizers, and disease and insect controls along with their certification status and manufacturers.