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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Carbamate insecticides

[Aldoxycarb] CAS[116-06-3] UN2757

= 2-Mesyl-2-methylpropionaldehyde O-methyl-carbamoyloxime, = 2-Methyl-2-(methylsulfonyl)propionaldehyde-O-(methylcarbamoyl)-oxime

Trade name

Aldoxycarb (I, A, B): Aldicarb, Aldicarb sulfone, Standak

Chemical formula

C7H14N2O4S

Purpose for use

Carbamate insecticide & nematicide.

Toxicity

LD50 (oral): mouse (male) 26.8 mg/kg.

Test organisms

Oligochaeta: Eisenia foetida (ref. ID; 7012)
Oligochaeta: Perionyx excavatus (ref. ID; 7085)
Nematoda: Caenorhabditis elegans (ref. ID; 852)

[Carbaryl] CAS[63-25-2]

= 1-Naphthyl N-methylcarbamate

Trade name

Carbaryl (J, I, A, B): Denapon, NAC (J Date registered 3/30/1959), Sevin

Chemical formula

C12H11NO2

Chemical characteristics

Lipophilicity log P 2.36. (ref. ID; 6959)

Purpose for use

Methyl carbamate insecticide.
Carbaryl is used around the world on a variety of agricultural crops, ornamentals, turf, forest, livestock, and poultry as well as on certain other nonagricultural pests. Carbaryl has been used since 1959 and the strongest influence on its use patterns has been a marked reduction of the general use of low-cost organochlorine insecticides for which it has often been selected as a replacement in the years 1980s. The inhibitory effects of carbaryl on cholinesterase activities which are essential for the transmission of nervous impulses are well established. Moreover, some carbamates have a toxic effect on cytochrome P-450's dependent system and are capable of mutagenesis and immunotoxicity. (ref. ID; 6822)

Toxicity

LD50 (oral): rat (male) 800 mg/kg, (female) 500 mg/kg.

Test organisms

Protozoa: Acanthamoeba castellanii (ref. ID; 946)
Protozoa: Colpidium campylum (ref. ID; 6784)
Protozoa: Spirostomum teres (ref. ID; 6838)
Protozoa: Tetrahymena pyriformis (ref. ID; 3554)
Oligochaeta: Allolobophora tuberculata (ref. ID; 7159, 7163)
Oligochaeta: Eisenia andrei (ref. ID; 6076)
Oligochaeta: Eisenia fetida (ref. ID; 6076, 6959, 7012, 7159, 7163)
Oligochaeta: Eisenia fetida andrei (ref. ID; 3582, 6822)
Oligochaeta: Eisenia veneta (ref. ID; 6076)
Oligochaeta: Eudrilus eugeniae (ref. ID; 7159, 7163)
Oligochaeta: Lumbricus terrestris (ref. ID; 6904, 6952)
Oligochaeta: Perionyx excavatus (ref. ID; 7085, 7159, 7163)
Oligochaeta: Tubifex tubifex (ref. ID; 6087)
Oligochaeta: Soil-dwelling community (ref. ID; 6071)
Oligochaeta: Review (ref. ID; 6833)

[Carbofuran] CAS[1563-66-2]

= 2,3-Dihydro-2,2-dimethylbenzofuran-7-ylmethylcarbamate, = 2,3-Dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate (ref. ID; 5915), = 2,3-Dihydro-2,2-dimethyl-benzofuran-7-yl N-methyl-carbamate (ref. ID; 6087)

Trade name

Carbofuran (I, A, B): Bayer-70143, Curaterr, Furadan, Pillarfuran

Chemical formula

C12H15NO3

Purpose for use

Methylcarbamate acaricide, insecticide, nematicide.

Toxicity

Inhibiting the acetylcholinestrease (AChE) activity in the nervous system. (ref. ID; 7152)

Test organisms

Protozoa; Euglena gracilis (ref. ID; 7152)
Oligochaeta: Eisenia andrei (ref. ID; 6873)
Oligochaeta: Eisenia foetida (ref. ID; 7012)
Oligochaeta: Lumbricus terrestris (ref. ID; 7626)
Oligochaeta: Octolasium transpadanum (ref. ID; 7626)
Oligochaeta: Tubifex tubifex (ref. ID; 6087)
Oligochaeta: Review (ref. ID; 6833)
Nematoda: Acrobeloides nanus (ref. ID; 5915)

[Furadan-3G: active ingredient Carbofuran three percent]

Test organisms

Rotifera: Brachionus calyciflorus (ref. ID; 107)

[Ethiofencarb] CAS[29973-13-5] UN2757

= 2-Ethylthiomethylphenyl methylcarbamate

Trade name

Ethiofencarb (I, B): Croneton, Ethiophencarb

Chemical formula

C11H15NO2S

Purpose for use

Insecticide.

Toxicity

LD50 (oral): rat 338 mg/kg, mouse (male) 105 mg/kg, mouse (female) 77 mg/kg.

Test organisms

Oligochaeta: Eisenia fetida (ref. ID; 6074)

[Methomyl] CAS[16752-77-5] UN2757

= S-Methyl N-(methylcarbamoyloxy)thioacetimidate

Trade name

Methomyl (J Date registered 4/20/1970, I, A, B): Halvard, Lannate, Nudrin

Chemical formula

C5H10N2O2S

Purpose for use

Carbamate insecticide & nematicide.

Toxicity

LD50 (oral): rat 17-24 mg/kg.

Test organisms

Oligochaeta: Eisenia foetida (ref. ID; 7012)
Nematoda: Caenorhabditis elegans (ref. ID; 852)

[Propoxur] CAS[114-26-1] UN2757

h4= 2-Isopropoxyphenyl methylcarbamateh4

Trade name

Propoxur (J, I, B): Baygon, Blattanex, PHC (J Date registered 4/17/1964), Unden, Unden forte

Chemical formula

C11H15NO3

Purpose for use

Methylcabamate insecticide.

Test organisms

Oligochaeta: Allolobophora chlorotica (ref. ID; 6066)
Oligochaeta: Aporrectodea caliginosa (ref. ID; 6066)
Oligochaeta: Aporrectodea longa (ref. ID; 6066)
Oligochaeta: Eisenia fetida (ref. ID; 6066, 6074, 7012)