Table 4 (continued)
Weeds
controlled
Allelopathic extract
+ herbicide
Crop
Reduction (%)
References
Weed
density
Weed dry
weight
butachlor
(400–600 g a.i.
ha
À1
)
Crowfoot
grass
Sorghum/
sunflower/rice
water extract
(15 L ha
À1
) +
pretilachlor
(208–313 g a.i.
ha
À1
)
Rice
62–74
50–81
[152]
Crowfoot
grass
Sorghum/
sunflower/rice
water extract
(15 L ha
À1
) +
butachlor
(400–600 g a.i.
ha
À1
)
Rice
67–75
31–69
[152]
Purple
nutsedge,
horse purslane
Sorghum water
extract at 10 L ha
À1
+ pendimethalin
(1.0 kg a.i. ha
À1
)
Cotton
39.1–51.9 37.2–50.3
[153]
Purple
nutsedge,
horse purslane
Sorghum water
extract at 10 L ha
À1
+ S-metolachlor
(2.15 kg a.i. ha
À1
)
Cotton
47.8–53.9 56.6–62.8
[153]
Common
lamb’s quarter,
swine cress
Sunflower +
sorghum water
extract each at
15 L ha
À1 +
pendimethalin
(825 ml ha
À1
)
Sunflower 84
67.3
[154]
Purple
nutsedge,
annual yellow
sweet clover
Sorghum water
extract at 12 L ha
À1
+ S-metolachlor
(2.15 kg a.i. ha
À1
)
Cotton
77
77
[80]
Horse
purslane,
purple
nutsedge,
common
lamb’s quarter,
swine cress
Brassica + sorghum
water extract each
at 15 L ha
À1 +
pendimethalin
(1.2 kg a.i. ha
À1
)
Canola
42.8–94.2 37.46–94.18 [155]
Littleseed
canarygrass
Sorghum water
extract at 12 L ha
À1
+ isoproturon
(1.0 kg a.i. ha
À1
)
Wheat
94.2
64.8
[156]
23 Ecological Management of Agricultural Pests Through Allelopathy
561