Black Pepper (Piper nigrum)
Slow wilt (C.O.: Plant parasitic nematodes like Radopholus similis and Meloidogyne incognita and fungi like Rhizoctonia bataticola, Fusarium spp. and Pythium spp.))
Symptoms
- Characterized by foliar yellowing,die back of aerial stems,occasional tip burn symptoms,interveinal chlorosis
- Foliar yellowing starts after north-east monsoon from october- november and reaches maximum during april-may coinciding summer
Management
- Nematode free root cutting raised in fumigated nursery mixture should be used for fresh planting.
- Remove the severely affected vines which are beyond recovery
- Apply green mulch of Eupatorium odoratum @ 45 t/ha.
- Use less susceptible live standards viz., Garuga pinnata,Erythrina indica
- Powder of the friendly bacterium Bacillus macerans can be applied at the time of planting at the rate of 10 g per vine. It can be applied on the flagellum just before the monsoon to prevent nematode attack in the orchards.
- Pochonia chlamydosporia is a very effective against root knot nematodes. 10 grams of powder should be mixed with 2 kg of finely ground dung or compost and added to the pepper base.
Chemical Control
| Sl.No | Generic Name | Trade Name | Color code | Dosage/litre | Recommendation | Remarks | |
|---|---|---|---|---|---|---|---|
| Dosage/acre (200 L) | Dosage/hectare (500 L) | ||||||
| 1 | Copper Oxychloride 50 WP | Bensaan, Blitox, Blue copper, Bluetrox, Copter, Cupramar, Cuprina, Dhanucop, Fytolan, Fytox, Fytran, Fytolan, Hilcopper, Killex copper, Maincop Dhanucop, Star cop, Tagcop, Trucop | Blue | 2.5 g/litre of water | 500 g | 1250 g | |

Extremely Toxic

Highly Toxic

Moderately Toxic
