FAQ
What is S-Metolachlor?
S-Metolachlor is a selective herbicide used to control annual
grass weeds and certain broadleaf weeds in a variety of crops. It belongs to the
chloroacetanilide chemical family and is known for its effectiveness in pre- and
post-emergence weed control.
How does S-Metolachlor work?
S-Metolachlor works
by inhibiting lipid biosynthesis in target weeds, which disrupts cell membrane formation and
ultimately leads to the death of the weed. It is absorbed by roots and shoots of the weed,
providing systemic control.
What crops is S-Metolachlor used on?
S-Metolachlor
can be used on a wide range of crops, including corn, soybeans, cotton, peanuts, sugar
beets, and various vegetables. It is particularly effective in controlling grass weeds such
as crabgrass, foxtail, and barnyard grass, as well as certain broadleaf weeds like pigweed
and waterhemp.
Is S-Metolachlor safe for the environment?
When used according
to label instructions, S-Metolachlor has been found to have minimal impact on the
environment. It has a low potential for leaching into groundwater and is not known to
bioaccumulate in aquatic organisms. However, it is important to follow all safety
precautions to protect non-target plants and wildlife.
What are the application rates
for S-Metolachlor?
Application rates for S-Metolachlor can vary depending on the
crop, weed species, and stage of growth. It is important to carefully read and follow the
label instructions to determine the appropriate rate for your specific situation.
Overapplication can lead to crop injury and reduced efficacy.
Can S-Metolachlor be
tank-mixed with other herbicides?
Yes, S-Metolachlor can be tank-mixed with certain
other herbicides to enhance weed control spectrum or provide resistance management. It is
important to carefully read the labels of both products and conduct a compatibility test
before tank-mixing to ensure safety and efficacy.
What is the best time to apply
S-Metolachlor?
The best time to apply S-Metolachlor is either pre-emergence or early
post-emergence, depending on the target weeds and crop. Pre-emergence applications should be
made before weed seeds germinate, while post-emergence applications are most effective when
weeds are in their early growth stages.
How long does S-Metolachlor persist in the
soil?
S-Metolachlor has a moderate persistence in the soil, with a half-life ranging
from a few weeks to several months depending on environmental conditions. It is important to
consider soil type, moisture levels, and organic matter content when determining the
potential for carryover or residual activity.
What precautions should be taken when
using S-Metolachlor?
When using S-Metolachlor, it is important to wear appropriate
personal protective equipment, such as gloves, goggles, and long-sleeved clothing. Avoid
applying the herbicide during windy conditions to prevent drift, and be mindful of sensitive
crops or water sources nearby. Always clean equipment thoroughly after use.
Is there
any resistance issue associated with S-Metolachlor?
While resistance to S-Metolachlor
has been reported in some weed species, proper resistance management strategies can help
mitigate this issue. Rotating herbicides with different modes of action, using integrated
weed management practices, and avoiding consecutive applications of S-Metolachlor can help
delay the development of resistance.
