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INSECTICIDES
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Banded Sunflower Moth
Remarks
Economic threshold is about one moth per two plants.
Insecticide
Asana XL, Baythroid, Furadan 4f, Lorsban 4E, Proaxis, Scout X-TRA, Warrior, Mustang Max, Declare, Cobalt, Yuma, Delta Gold, and Grizzly Z
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Cutworm
Remarks
Economic threshold is one cutworm per square foot, or 25-30% stand reduction.
Insecticide
Asana XL, Lorsban 4E, Lorsban 15G, carbaryl Sevin 20% Bait, Proaxis, Sevin XLR, Warrior, Mustang Max, Declare, Cobalt, Yuma, Delta Gold, and Grizzly Z
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Grasshopper
Remarks
Treat when eight or more adults per square yard are present in the field, or when 20 or more per square yard are found in field margins.
Insecticide
Asana XL, Furadan 4F, Lorsban 4E, 6-3-methyl parathion, carbaryl (Sevin), Proaxis, Scout X-TRA, Warrior, Mustang Max, Declare, Cobalt, Yuma, Delta Gold, and Grizzly Z
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Sunflower Beetle
Remarks
Economic threshold is one to two adults, or 10 to 12 larvae, per plant.
Insecticide
Asana XL, Baythroid, carbaryl (Sevin), Cruiser, Furadan 4F, Lorsban 4E, Proaxis, Scout X-TRA, Warrior, Mustang Max, Declare, Cobalt, Yuma, Delta Gold, and Grizzly Z
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Sunflower Midge
Remarks
There are no effective chemical controls currently recognized for this pest. The best management strategy has been rotation to crops other than sunflower in the vicinity of large infestations. Selecting hybrids for their ability to tolerate midge infestations should be considered when choosing seed.
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Sunflower Moth
Remarks
Economic threshold (at onset of bloom) is one to two adults per five plants.
Insecticide
Asan XL, Baythroid, Endosulfan 3DC (Phaser, Thiodan), Furadan 4F, Lorsban 4E, methyl or ethyl parathion 8 EC, 6-3 parathion-methyl parathion, Proaxis, Scout X-TRA, Warrior, Mustang Max, Declare, Cobalt, Yuma, Delta Gold, and Grizzly Z
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Sunflower Seed Weevil
Remarks
Economic threshold is from four to eight adults per plant (oil) and one to two per plant (confection). Treat for red weevils at R5.1 to R5.4 stage of sunflower plant development.
Insecticide
Asana XL, Baythroid, Lorsban 4E, methyl parathion 8EC, 6-3 parathion-methyl parathion, Proaxis, Scout X-TRA, Warrior, Mustang Max, Declare, Cobalt, Yuma, Delta Gold, and Grizzly Z
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Sunflower Stem Weevil
Remarks
Economic threshold is one adult per three plants during late-June to mid-July time frame.
Insecticide
Asana XL, carbaryl (Sevin), Furadan 4F, Lorsban 4E, Proaxis, Scout X-TRA, Warrior, Mustang Max, Declare, Cobalt, Yuma, Delta Gold, and Grizzly Z
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Wireworm
Remarks
Cruiser and Gaucho seed treatment insecticides offer sunflower growers a superior crop protection tool for the management of damaging early-season soil and foliar insects such as: sunflower beetle, wireworm and flea beetle. Commercially applied by seed companies only.
Insecticide
Cruiser, Gaucho
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