flumioxazin
Trade name: Broadstar, Chateau, Payload, Sureguard, Valtera
Site of Action: Inhibitors of protoporphyrinogen oxidase (Protox)
Group 14
Symptoms
- Within a few hours, initial water soaked symptoms appear
Treated plants become necrotic
Within a few days, plant death occurs
Uptake and translocation
- Primarily taken up by the roots of treated plants following soil applications
- Movement in the phloem is limited because of the rapid foliar desiccation caused by the herbicide
Persistence
- Flumioxazin degrades rapidly in water and soil
- Dissipation of flumioxazin occurs by hydrolysis and microbial oxidation
- Flumioxazin has a half life of 4.2 days at pH 5 and 1 day at pH7
- Residual activity lasting up to 100 days depending on conditions