Adult Bee Toxicity
Unknown Oral LD50 in µg/bee
Larval Bee Toxicity
Unknown Oral LD50 in µg/bee
Chemical Group
Borate
Adult Bee Toxicity
Unknown
Adult Bee Toxicity Group
Unknown
Larval Bee Toxicity
Unknown
Relative Index of Systemic Activity
1.47
Registered Uses (USA)
Non-crop uses in and around structures. Labels also allow for treatment of ant mounds (which may result in incidental turf or landscape site exposure).
Use Categories
Non-crop
Seed Treatment Use
No
Further Information
Also known as "boric acid and its several sodium salts". Xylem-mobile. Can be absorbed through leaves (Pratt 1996). Hanson (1991) showed that boron, applied as a foliar spray to some fruit crops in autumn before leaf senescence occurred, moved out of leaves into adjacent twigs and spurs, and remained in the wood until the following spring, when it was allocated to developing flowers.
Systemic Reference(s)
Pratt, J. 1996. Borates for Stump Protection: A Literature Review. Forestry Commission, Edinburgh: Technical Paper 15. 26 pp. Also, Hanson, E. 1991. Movement of Boron out of Tree Fruit Leaves. HortScience 26(3):271–273.