Lambda-cyhalothrin and an isomer gamma-cyhalothrin; tolerances for residues.

Checkout our iOS App for a better way to browser and research.

§ 180.438 Lambda-cyhalothrin and an isomer gamma-cyhalothrin; tolerances for residues.

(a) General.

(1) Tolerances are established for the combined residues of the pyrethroid lambda-cyhalothrin, 1:1 mixture of (S)-α-cyano-3-phenoxybenzyl-(Z)-(1R,3R)-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate and (R)-α-cyano-3-phenoxybenzyl-(Z)-(1S,3S)-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate and its epimer expressed as epimer of lambda-cyhalothrin, a 1:1 mixture of (S)-α-cyano-3-phenoxybenzyl-(Z)-(1S,3S)-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate and (R)-α-cyano-3-phenoxybenzyl-(Z)-(1R,3R)-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate, on plants and livestocks, as indicated in the following table.

Expand Table
Commodity Parts per million
Alfalfa, forage 5.0
Alfalfa, hay 6.0
Almond, hulls 1.5
Apple, wet pomace 2.50
Avocado, imported 0.20
Barley, bran 0.2
Barley, grain 0.05
Barley, hay 2.0
Barley, straw 2.0
Brassica, head and stem, subgroup 5A 0.4
Buckwheat, grain 0.05
Canola, refined oil 2.0
Canola, seed 1.0
Cattle, fat 3.0
Cattle, meat 0.2
Cattle, meat byproducts 0.2
Corn, field, flour 0.15
Corn, field, forage 6.0
Corn, field, grain 0.05
Corn, field, stover 1.0
Corn, pop, grain 0.05
Corn, pop, grain, flour 0.05
Corn, pop, stover 1.0
Corn, sweet, forage 6.0
Corn, sweet, stover 1.0
Corn, sweet, kernel plus cob with husks removed 0.05
Cotton, undelinted seed 0.05
Egg 0.01
Fruit, pome, group 11 0.30
Fruit, stone, group 12 0.50
Garlic 0.1
Goat, fat 3.0
Goat, meat 0.2
Goat, meat byproducts 0.2
Grain, aspirated fractions 2.0
Grass, forage, fodder and hay, group 17 7.0
Hog, fat 0.2
Hog, meat 0.01
Hog, meat byproducts 0.02
Hop, dried cones 10.0
Horse, fat 3.0
Horse, meat 0.2
Horse, meat byproducts 0.2
Lettuce, head 2.0
Lettuce, leaf 2.0
Milk, fat (reflecting 0.4 ppm in whole milk) 10.0
Nut, tree, group 14 0.05
Oat, grain 0.05
Oat, forage 2.0
Oat, hay 2.0
Oat, straw 2.0
Onion, bulb 0.1
Pea and bean, dried shelled, except soybean, subgroup 6C 0.10
Pea and bean, succulent shelled, subgroup 6B 0.01
Peanut 0.05
Peanut, hay 3.0
Pistachio 0.05
Poultry, fat 0.03
Poultry, meat 0.01
Poultry, meat byproducts 0.01
Rice, grain 1.0
Rice, hulls 5.0
Rice, wild, grain 1.0
Rye, bran 0.2
Rye, grain 0.05
Rye, forage 2.0
Rye, straw 2.0
Sheep, fat 3.0
Sheep, meat 0.2
Sheep, meat byproducts 0.2
Soybean 0.01
Sorghum, grain, grain 0.2
Sorghum, grain, forage 0.30
Sorghum, grain, stover 0.50
Sugarcane, cane 0.05
Sunflower, forage 0.2
Sunflower, seed, hulls 0.50
Sunflower, refined oil 0.30
Sunflower, seed 0.2
Tomato 0.1
Tomato, dry pomace 6.0
Tomato, wet pomace 6.0
Vegetable, cucurbit, group 9 0.05
Vegetable, fruiting, group 8 0.20
Vegetable, legume, edible podded, subgroup 6A 0.20
Vegetable, tuberous and corm, subgroup 1C 0.02
Wheat, grain 0.05
Wheat, forage 2.0
Wheat, hay 2.0
Wheat, straw 2.0
Wheat, bran 0.2

(2) Tolerances1 are established for the combined residues of the pyrethroid [gamma-cyhalothrin (the isolated active isomer of lambda-cyhalothrin) (S)-′-cyano-3-phenoxybenzyl (Z)-(1R,3R)-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate)) and its epimer (R)-′-cyano-3-phenoxybenzyl (Z)-(1R,3R)-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate in/on the following commodities:

Expand Table
Commodity Parts per million
Alfalfa, forage 5
Alfalfa, hay 6
Almond, hulls 1.5
Apple, pomace, wet 2.50
Avocado, imported 0.20
Brassica, head and stem, subgroup 5A 0.4
Canola, seed 0.15
Cattle, fat 3
Cattle, meat 0.2
Cattle, meat byproducts 0.2
Corn, field, flour 0.15
Corn, field, forage 6.0
Corn, field, grain 0.05
Corn, field, stover 1.0
Corn, pop, grain 0.05
Corn, pop, stover 1.0
Corn, sweet, forage 6.0
Corn, sweet, kernel plus cob with husks removed 0.05
Corn, sweet, stover 1.0
Cotton, undelinted seed 0.05
Egg 0.01
Fruit, pome, group 11 0.30
Fruit, stone, group 12 0.50
Garlic 0.10
Goat, fat 3.0
Goat, meat 0.2
Goat, meat byproducts 0.2
Grain, aspirated fractions 2.0
Hog, fat 3.0
Hog, meat 0.2
Hog, meat byproducts 0.2
Horse, fat 3.0
Horse, meat 0.2
Horse, meat byproducts 0.2
Lettuce, head 2.0
Lettuce, leaf 2.0
Milk, fat (reflecting 0.20 ppm in whole milk) 5.0
Nut, tree, group 14 0.05
Okra 0.20
Onion, bulb 0.1
Pea and bean, dried shelled, except soybean, subgroup 6C 0.10
Pea and bean, succulent shelled, subgroup 6B 0.01
Peanut 0.05
Peanut, hay 3.0
Pistachio 0.05
Poultry, fat 0.03
Poultry, meat 0.01
Poultry, meat byproducts 0.01
Rice, grain 1.0
Rice, hulls 5.0
Sheep, fat 3.0
Sheep, meat 0.2
Sheep, meat byproducts 0.2
Sorghum, grain, forage 0.30
Sorghum, grain, grain 0.20
Sorghum, grain, stover 0.50
Soybean 0.01
Sugarcane 0.05
Sunflower, forage 0.20
Sunflower, refined oil 0.30
Sunflower, seed 0.20
Sunflower, seed, hulls 0.50
Tomato 0.10
Tomato, dry pomace 6.0
Tomato, wet pomace 6.0
Vegetables, fruiting, group 8 0.20
Vegetable, legume, edible podded, subgroup 6A 0.20
Wheat, bran 2.0
Wheat, forage 2.0
Wheat, grain 0.05
Wheat, hay 2.0
Wheat, straw 2.0

(3) A tolerance of 0.01 part per million is established for residues of the insecticide lamba-cyhalothrin and an isomer gamma-cyhalothrin in or on all food commodities (other than those already covered by a higher tolerance as a result of use on growing crops) in food-handling establishments where food products are held, processed, or prepared.

(b) Section 18 emergency exemptions. [Reserved]

(c) Tolerances with regional registrations. [Reserved]

(d) Indirect or inadvertent residues. [Reserved]

[71 FR 74817, Dec. 13, 2006, as amended at 72 FR 45663, Aug. 15, 2007; 73 FR 39264, July 9, 2008; 76 FR 34885, June 15, 2011; 80 FR 72599, Nov. 20, 2015]


Download our app to see the most-to-date content.