Spinosad

Spinosad is an insecticide which is extracted from the actinomycete Saccharopolyspora spinosa and is composed of spinosyn A and D. Spinosyns consist of a ring of four to an amino sugar ( forosamine D ) and a neutral sugar ( tri- Ο -methyl- L-rhamnose ). There are about 200 synthetic and natural 20 different Spinosyns.

Composition

Spinosad is a mixture of spinosyn A and D in a ratio of about 5:1.

• Practically insoluble in water ( 0.0894 g · l-1 at 20 ° C)
• 168 g · l-1 in acetone

• Practically insoluble in water ( 0.00495 g · l-1 at 20 ° C)
• 10.1 g · l-1 in acetone

The commercial product is a solid with a slightly earthy smell, has a density of 0.512 g · cm -3 (at 20 ° C) and decomposes at 173 ° C.

Use

Spinosad (mixture of spinosyn A and spinosyn D in a ratio of 95:5 to 50:50)

131929-63-0 ( spinosyn A) 131929-60-7 ( spinosyn D)

Risk

Plant protection

Spinosad is used in plant protection against thrips, codling moths, leaf miners and other insect species. It is also suitable to control the cherry fruit fly (Drosophila suzukii ).

The active ingredient spinosad was approved in the European Union with effect from 1 February 2007 for use as insecticide in plant protection products. The use in organic farming is allowed.

In Germany, Austria and Switzerland pesticide products are registered with the active ingredient spinosad ( Conserve, Success, SpinTor ).

Medicine and veterinary medicine

In veterinary medicine, spinosad is used against ectoparasites such as fleas and lice.

The U.S. FDA has approved spinosad in 2011 for the treatment of head lice in children four years.