herbicide specifics Flashcards
Group 2 Sulfonylurea chemical name example
Tribenuron
group2 Imidazolinine chemical name example
Imazamox
group 2 Triazolopyrimidine chemical name example
Florasulam
group 2 target site and MOA
ALS or AHAS
-Inhibit branched chain amino acids synthesis
group 2 injury symptoms
yellowing, reddening and purpling in growth points
if not death, apical meristem death –> Weird branching
Imazamox (group 2) can control what weed?
Lambs quarters
Florasulam (group 2) can control what weed?
Canada thistle
group 3 chemical name example
Trifluralin
group 3 target site and MOA
tubulin - microtubules
prevents microtubules from completing mitosis
group 3 injury symptoms
no germination
lack of cekk division
sub lethal- club and brittle roots
group 3 foliar or soil applied?
soil
group 4 foliar or soil applied?
foliar
group 4 inhibits?
auxin
group 4 target site and MOA
Bind to auxin binding proteins in cytosol or plasma membrane
mimic plant auxin
group 4 injury symptoms
strange growth
leaf cupping
stem swelling
group 5,6,7 inhibits…
photosynthesis / PS2
group 5 chemical name example and crop used on
Cyanazine - corn
group 5 target site and MOA
D1 protein in PS2
effect the binding of plastoquinone (blocking electron movement)
group 5/6/7 symptoms
chlorosis/necrosis
blotchy chlorotic patches first near leaf margin
group 6 chemical name example and crop
Bromoxynil - annual broadleaf weeds in cereals
group 6 target site and MOA
binds with plastoquinone pool at site B
group 9 inhibits…
aromatic amino acids
group 9 chemical name
glyphosate
group 9 target site and MOA
shikimate pathway
inhibits aromatic amino acids - leads to buildup of toxins
