Per the product label for Pastora you should allow 16 days between applications, just be sure not go over the max rate per year as listed on the label
Pastora Herbicide is labeled to control sandburs in pastures when used as directed on the product label. Please refer to page 6/7 for complete instructions.
Pastora Herbicide can only be used on unimproved bermudagrass, which means the area serves as a functional purpose - slopes of roadsides, right of ways, grass cover to prevent erosion.
Pastora Herbicide does list on the label that alfafa is higly sensitive and will be severely stunted or injured. It is not labeled to control orchard grass.
Pastora Herbicide is not labeled for use on residential lawns and is not labeled for bluestem grass. We do apologize but unfortunately we are unable to find a product labeled for this invasive grass. Roundup spot treatments and reseed in the area would be the best recommendation and one that we are able to find as well when researching this. You may also contact your Master Gardener at your Extension Office. This Master Gardener will be able to give you recommendations on what works best in your region that others may have had success with.
Since Pastora Herbicide is a pre- and post-emergent, it would be best to wait at least 1 year to plant in the area, though the label states it can remain in the soil for up to 34 months. A non-selective product containing glyphosate can be applied to growing weeds/grasses a couple of weeks prior to planting in the area.
Pastora Herbicide is not labeled for use on lawns, walks, driveways, tennis courts, golf courses, athletic fields, or other high-maintenance, fine turfgrass areas, or similar areas. This product is for use on established Bermudagrass Pastures and Hay Meadows Bermudagrass Turf (Unimproved Only). Not for Use on Lawns.
Pastora Herbicide is not for use around anything consumable by humans, it is only for use on Established Bermudagrass Pastures and Hay Meadows Bermudagrass Turf. You can spray the area with a non selective like Roundup to kill everything in an area and you can plant in 2 weeks or you can use an over the top grass killer if just grass is your issue.
Since Pastora does not list Kleingrass on the label, we cannot say if it will work. We suggest contacting your county extension office for advice on what will work.
Pastora Herbicide is labeled for sandbur in bermudagrass pastures. Per the product label, apply at 1 ounce per acre and make applications when sandbur is newly germinated to 1.5" tall. Make applications when bermudagrass is less than 4" tall, following green-up in the spring or after cutting for hay.
Please review page 13 of the product label for more information on Sandbur treatments.
Pastora Herbicide is not specifically labeled for Sida Rhombifolia plants/weeds. Instead, GrazonNext HL Herbicide is labeled to target prickly sida and may be safely applied to pastures as long as you are following the instructions on the product label. This product is not specifically labeled for the arrowleaf sida, so if the product happens not to work for the arrowleaf sida as well, we would suggest spot treating the areas with a non-selective herbicide such as RoundUp, and then reseed the areas to fill in any bare spots.
Pastora Herbicide is Not for Use on Lawns.
Since Pastora Herbicide is a pre and post emergent, it would be best to wait at least 1 year to plant in the area, though the label states it can remain in the soil for up to 34 months.
Pastora Herbicide is primarily labeled for post emergent control of sandbur and best applied when the sandbur is newly germinated to 1.5” tall per the product label. For overwintering sandbur or newly germinated sandbur that is greater than 1.5” tall, applications of PASTORA® HERBICIDE may only suppress growth resulting in a reduction in sandbur seedheads.
Per page 13 of the Product Label for Sandbur: Make applications when bermudagrass is less than 4” tall following green-up in the spring or after cutting for hay. Tall, dense stands of bermudagrass can intercept spray and reduce sandbur control. In some areas, sandbur may overwinter and start the new season with an established root system.
For overwintering Sandbur that is greater than 1.5”, it is best to tank mix Pastora Herbicide with a glyphosate non selective at the rate of 0.156 to 0.257 pounds glyphosate per acre. A follow-up application of PASTORA® HERBICIDE may be necessary to control subsequent germination (flushes) of sandbur following the first application or when the first application was made to larger sandbur or under unfavorable environmental conditions.
Sandbur Management must be part of an overall pasture management plan which includes good fertility, adequate moisture (rainfall, irrigation), insect and rodent control, and other agronomic practices which maximize bermudagrass growth. In contrast, sandbur control in areas with thin stands of bermudagrass may not be satisfactory.
Since Pastora Herbicide is a pre and post emergent, it would be best to wait at least 1 year to plant in the area, though the label states it can remain in the soil for up to 34 months.
Pastora Herbicide is applied at a rate of 1 - 2.5 oz. per 100 gallons of water per acre, and the specific rates vary depending on your treatment goals. You should refer to the product label for use rates specific to your target weeds, and for complete application instructions.
The rate of 1.5 ounces of Pastora Herbicide can treat an acre. The amount of water really depends on how much water it takes you to cover that area, that can depend on the type of equipment, height, and walking pace or driving speed, this can be different for everyone. We recommend to calibrate your sprayer to determine the amount of water you will need specifically to make an application. Please read the product label for complete application instructions.
Pastora Herbicide should not be used under or around any desirable trees, it should be kept outside of the drip line of desirable trees. Please review the product label for application rates and instructions.
The rate for Pastora is 1-2.5 oz. per acre, depending on what weed(s) you are treating. You can find use rates for specific weeds on the product label. This is typically mixed with at least 20 to 50 gallons of water.