Fertilome Liquid Carbaryl (Sevin) Garden Spray can be applied anytime except during the heat of the day to prevent burning of plants. Early morning or late evening is best.
Yes, Fertilome Liquid Carbaryl (Sevin) Garden Spray would be a good spray for apple trees. Do not repeat applications more than once a week and no more than 8 times per year. This product has been discontinued by the manufacturer, however, we do have Sevin Concentrate that can be used as well.
Fertilome Liquid Carbaryl (Sevin) Garden Spray is not labeled to control locust borers, however GardenTech Sevin Ready to Spray Bug Killer is labeled to treat locust borers. Sevin/carbaryl will only kill insects on contact, and treatments must be at least 7 days apart, with a maximum of four treatment annually for trees and six times annually for ornamental shrubs and flowers.
Systemic insecticides that are labeled for other roundheaded borers should be effective when applied early enough in the season. Fertilome Tree and Shrub Systemic Insect Drench is labeled for roundheaded borers. Zylam Liquid Systemic Insecticide would be an excellent choice if you have a persistant problem or a population that may be resistant to imidacloprid.
This article from your Utah State Extension Service gives more information about this pest.
You will need to wait 3 days to harvest tomatoes after applying Fertilome Liquid Carbaryl (Sevin) Garden Spray.
The rate for Ferti-lome Liquid Carbaryl Garden Spray is 4 tsp per gallon of water on fruit and vegetables and Citrus trees. It is not labeled to be used on pecan trees. We do sell a product called Permethrin Indoor/Outdoor Concentrate which is labeled for fruits and vegetables as well as nut trees.
The Ferti-lome Liquid Carbaryl (Sevin) Garden Spray active ingredient is Carbaryl 23.7%.
Ferti-lome Liquid Carbaryl (Sevin) Garden Spray is not labeled to be used on Sunflowers. PyGanic Gardening is an organic botanical insecticide to treat a broad lists of insects on growing crops and ornamentals including sunflowers.
PyGanic Gardening can be applied up to the day of harvest for listed ornaments, vegetables, and fruits listed tolerant on the product label.