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EPA registration data for Reg. 66330-404 →
Kasumin 2L is an antibiotic/bactericide fungicide used for the control of bacterial diseases in specific fruit crops. The active ingredient is Kasugamycin Hydrochloride Hydrate at 2.3% by weight. It is specifically labeled for use on Cherry (Crop Subgroup 12-12A), Pome Fruit (Crop Group 11-10) such as apple, crabapple, mayhaw, Asian pear, quince, Chinese quince, Japanese quince, and European pear, and Walnut. It controls diseases including Bacterial Blast and Bacterial Canker in cherries, Fire Blight in pome fruits, and Walnut Blight. Application involves spraying the product into the canopy, using outward pointing nozzles at row ends to reduce drift. For most crops, the standard rate is 64 fl oz per acre applied in at least 100 gallons of water per acre. Users must follow specific restrictions, such as not applying after petal fall in certain crops and observing preharvest intervals (PHI) ranging from 30 to 100 days depending on the crop. Handling requires personal protective equipment including chemical-resistant gloves, protective eyewear, and coveralls. It is intended for agricultural use only and should not be used for medical, veterinary, or human purposes.
Pests covered (4)
Bacterial Blast (Pseudomonas syringae pv syringae)Bacterial Canker (Pseudomonas syringae pv syringae)Fire Blight (Erwinia amylovora)Walnut Blight (Xanthomonas campestris pv juglandis)
Areas treatable (3)
CherryPome FruitWalnut
How to treat each type of area 4
Cherry
| Target pest |
Location |
Rate |
Unit |
Dilution |
Label notes |
| Bacterial Blast (Pseudomonas syringae pv syringae) |
Outdoor |
64 fl oz/A |
fl oz/A |
in at least 100 gal of water |
Begin applications when conditions favor disease development, from white tip to petal fall. |
| Bacterial Canker (Pseudomonas syringae pv syringae) |
Outdoor |
64 fl oz/A |
fl oz/A |
in at least 100 gal of water |
Begin applications when conditions favor disease development; prior to cold; and when wet conditions occur in fall and winter. |
Pome Fruit
| Target pest |
Location |
Rate |
Unit |
Dilution |
Label notes |
| Fire Blight (Erwinia amylovora) |
Outdoor |
64 fl oz/A |
fl oz/A |
in at least 100 gal of water |
Repeat applications at 3- to 6-day intervals when conditions favor disease development. |
Walnut
| Target pest |
Location |
Rate |
Unit |
Dilution |
Label notes |
| Walnut Blight (Xanthomonas campestris pv juglandis) |
Outdoor |
64 fl oz/A |
fl oz/A |
in at least 100 gal of water |
Begin applications when conditions favor disease development. |
Mixing instructions 1
| For pests |
Location |
Amount |
Per |
Finished strength |
Label notes |
| All target pests |
Outdoor |
64 fl oz |
Acre |
in at least 100 gal of water |
Reduced spray volumes may be utilized for small trees where complete coverage can be obtained with less than 100 gal of water/A. |
Worker safety
Re-entry interval (REI)
12
PPE required
Chemical-resistant gloves, protective eyewear (goggles, safety glasses or face shield), coveralls over short-sleeved shirt and short pants, socks and shoes, and NIOSH-approved particulate filtering respirator if required.
Timing & weather
- Begin applications when conditions favor disease development
- For pome fruit: prior to cold and when wet conditions occur in fall and winter
Use restrictions 6
- Do not apply after petal fall (Cherry/Pome Fruit)
- Do not apply more than 4 applications per year (Cherry/Pome Fruit/Walnut)
- Do not apply more than 2 consecutive applications before alternating with a different mode of action
- Do not apply through irrigation systems including chemigation
- Do not apply in orchards where soil has been fertilized with animal waste/manure or human biosolids
- Animal grazing in treated areas is prohibited