Nematicide application method
Actually, nematodes is a type of pesticides use to help control nematodes (roundworms). These compounds are usually quite toxic to humans, so must be used with extreme care. Neem cake is generally used to obtain nematicide.
Nematodes are little worms which atack crop plants, are too small to recognize without a microscope extra in enormous number in form fields. They damage roots and are a primary cause of reduced plant grouth and crop yeids but nematodes can be controlled by application of nematicides. Control results in incresed crop yieids.
- (Trichloronitromethane); Trade name : Larvacide, Picfume ; Dose : 12 oz/100 ft2.
- Methyl bromite(Bromomethane) ; Trade name : Embafume, Bedfume, Dowfume, MC, pestmaster ; Dose : 1-2lb/1000ft2.
These two chemicals are used for fumigating pot soil, seed beds and plant beds for killing nematodes, fungi, bacteria, weed seeds and insects present in the soil. They are applied by injector under the plastic seal as they are highly volatile.
Trade name : Dowfume W-40, Soilfume 40, Bromofume-40, Nemex 42 (Containing 41% EDB), Dowfume W-85, Bromofume 85, Nemex-85(Containing 85% EDB); Dose : 60 1/ha.
DD (1, 3-dichloropropene + 1,2-dichloropropene)
Trade name : D-D, Vidden D , Telone ; Dose : 250-500 l/ha.; Ues : These chemicals are highly effective nematicideas. They are applied with injector by injecting small quantities into the soil to depth of 15 cm or deeper. DD is more effective in controlling cyst and lesion nematicides and root knot nematicides. EDB is more effective in controlling sting, stunt and potato rot nematicides.
NOTE. EDB should not be applied on bromine sensitive plants like onions, garlic, lily, amaryllis, etc.
DBCP(1, 2-Dibromo-3 choropropane)
Trade name : Nemagon, Fumazone ; Dose : 25-50 l/ha; Use : It is effective against root knot nematicides. It can be used in irrigation water around the roots of living plants as they are well tolerated by most crop plants at the recommendad doses.
Parathion (O, O-diethyl O-(p-nitrophenyl)-phosphorothioate) ; Trade name : Ekatox, Folidol, Thiophos ; Formulation : 50 EC ; Use : It is effective in controlling chrysanthemum foliar and bud nematicide (Aphelenchoides fragariae).
Dichlofenthion [O-(2,4-dichlorophenyl )
O, O-diethyl phosphorothionate] ; Trade name : VC -13, Hexanema ; Formulation : 5% granules or 75% EC ; Dose : 8-12 Kg a.i./ha ; Use : It is used against root knot nematicides on the living plants.
Thionazin (O, O-diethyl-O-2-pyrazinyl phosphorothioate)
Trade mane : Nemaphos, Zinophos ; Formulation : 10% granules ; ZDose : 4-8 kg a.i/ha.; Use : This is effective nematicide against sting nematode of maize at 1 kg a.i/ha as row treatment. It is also effective against root knot nematode of vegetables.
Fensulfothion [O,O-diethyl –O-P (Methyl sulfinyl) phenyl phosphorothioate]
Trade names : Terracur-p, Dasanit ; Formulation : 5-10 % granules ; Dose : 4-8 kg a.i./ha. Use: This is used against root nematodes of vegetables.
Phorate [O,O-diethyl S-(ethyl thio methyl) phosphorodithioate]
Trade name : Thimat ; Formulation : 10% granules ; Dose : 4-8 a.i./ha ; use : Effective against stunt, root, lesion and nematicides on the ornamentals.
Ethoprop [O,O-diethyl S, S-dipropyl phosphorothionate]
Trade name : Macop ; Formulation : 10% granules ; Does : 4-8 kg a.i./ha Use : Effective against root knot nematicides on ornamentals.
Metham sodium (Sodium N-methyl dithiocarbamate)
Trade name : Vapam, Unifume, Vitafume, Sistan ; Formulation : 32-35% aqueous solution ; Dose : 40 oz /100ft2, Use : It can be used as pre-plant treatment against control of insects, nematicides, fungi, weeds and other pests. It may be applied as a drench, in irrigation water or by injection into the soil.
Oxamyl[(Methyl N,N-dimethyl-N-(Methyl carbamoyl) oxy) -1-thiooxamimidate]
Trade name : D-1410, Vydate ; Formulation : 40% EC ; Dose : 4-8 l a.i./ha ; Use : It is a systemic nematicide. It is mostly used against foliar nematodes. It can also be sprayed to the foliage to control the nematodes on the roots.
Methomyl[S-methyl N-(methyl carbamoyl) oxy- thioacetamidate]
Trade name : Furadon ; Formulations : 90% WP ; Dose : 4-8 kg a.i./ha ; Use : It is a systemic nematicide.
Carbofuran(2,3-dihydro-2, 2-dimethyl-7-benzofuranyl methyl carbamate)
Trade name : Furadan : Formulation : 3% granuls, 50% WP ; Dose : 4-8 kga.i./ha ; Use : It is effective against root knot of vegetables. It is a systemic nematicides.
Aldicarb [2-methyl-2-(methylthio) propionaldehyde O (methylcarbamoyl) oxime]
Trade name : Temik ; Formulation : 10% granules ; Dose : 2-4 kg a.i./ha ; Use : It is a systemic nematicide. Effective against root knot nematodes of vegetable and tobacco both in nursery and field.
Dazomet (Tetrahydro-3-5-dimethyl-1, 3, 5-thiadiazine-2-thione)
Trade name : Basanid, Mylone and soil-kael ; Formulation : 50 and 85% WP granules, 2 and 5% dust; Dose : 2-5kga.i./ha ; Use : It is recommended for use on tobacco and ornamental plants. It is reported to be phytotoxic to growing plants.