Effects of toxicity of weedicides on fishes

Effect of toxicity of weedicides on fishes CAN be varying according to the type of weedicides use in the field. Some of the toxic effects of weedicides on fish are;

1. death of fish
2. mutations

The results of studies on weedicides toxicity to fish and freshwater Ectoprocta are reported.

Lantana camara is one of the ten most noxious weeds in the world. It is toxic to animals and exerts allelopathic action on neighboring vegetation.this weed can be fatal for the fish as well.

The in vitro inhibitory effects of various weedicides and pesticides on goat brain cathepsin B and their labilizing potency on the lysosomal membrane were quantitated in several studies.

There are several classifications available for weedicides

By activity:
• Contact herbicides destroy only the plant tissue in contact with the chemical.
• Systemic herbicides are translocated through the plant, either from foliar application down to the roots, or from soil application up to the leaves.

By use:
• Soil-applied herbicides are applied to the soil and are taken up by the roots and/or hypocotyl of the target plant. There are three main types of soil-applied herbicides:
• 1. Pre-plant incorporated herbicides are soil applied prior to planting and mechanically incorporated into the soil. The objective for incorporation is to prevent dissipation through photo decomposition and/or volatility.
• 2. Preemergent herbicides are applied to the soil before the crop emerges and prevent germination or early growth of weed seeds.
• 3. Post-emergent herbicides are applied after the crop has emerged