Bonide Annual Tree & Shrub Insect Control Concentrate should be applied when insects first appear and before high pest populations are established, prior to blooming or after all flower petals have fallen off.
When you are using Annual Tree & Shrub Insect Control Concentrate on crepe myrtles, the rate is 1 fl oz per inch of the trunk diameter in 1 gallon of water. For example, if your tree is 10 inches in diameter, the rate is 10 oz. in 1 gallon of water. If you need to use more than 50 oz of product, you will mix that into 2 gallons of water.
The rate for Annual Tree & Shrub Insect Control Concentrate is 1 oz per inch of circumference of the tree trunk to one gallon of water per the product label. So a tree with a diameter of 12” has a circumference of 37.7” inches you would use 37.7 oz of product.
Annual Tree & Shrub Insect Control Concentrate is not labeled for use on anything edible. You may want to consider the Fruit Tree and Vegetable Systemic Soil Drench which has the same active ingredient and is labeled for edibles.
Annual Tree & Shrub Insect Control Concentrate will not harm rhododendrons when applied per label. Be sure to apply in the cooler times of the day and when plants ARE NOT blooming.
Yes, Annual Tree & Shrub Insect Control Concentrate should be diluted with water at a rate1.5 tsp. per gallon of water per 1,000 sq. ft.
Yes, Bonide Annual Tree & Shrub Insect Control Concentrate is labeled to treat for psyllids. The product label recommends a usage rate of 30 oz. per gallon of water for a 30 ft tall tree with a diameter of 10". You will need to pour this about 2 ft out from the base of the tree and get it evenly applied around the circumference.
Annual Tree & Shrub Insect Control Concentrate is not labeled to be used on anything edible would not be recommended. Instead you can use the Fruit Tree and Vegetable Systemic Soil Drench on listed vegetables which has the same active ingredient at a lower percentage so is safe.