Cucumber (Cucumis sativus)
Fusarium wilt (Fusarium oxysporum f. sp.)
Symptoms
- Initial symptoms appear as yellowing and marginal necrosis of leaves from down to upwards.
- Leave lose turgidity and then sudden drooping and wilting of plants.
- The roots are usually not affected.
- The vascular bundles in the collar region and entire stem become yellow or brown.
Management
- Remove and destroy all infected plants along with roots.
- Follow crop rotation with non-cucurbitaceous crops.
- Soil solarization for 40-45 days during summer months.
- Apply soil amendments like neem cake (250 g/m2).
- Application of non-pathogenic isolates of Fusarium or Pseudomonas putida as bioagents also help in the management of this disease.
- Prophylatic soil drench with Pseudomonas fluorescens or Trichoderma spp. (20 g/litre of water).
Chemical Control
| Sl.No | Generic Name | Trade Name | Color code | Dosage/litre | Knapsack Sprayer (Capacity 10L) | Recommendation | Remarks | |
|---|---|---|---|---|---|---|---|---|
| Dosage/acre (200 L) | Dosage/hectare (500 L) | |||||||
| 1 | Carbendazim 50 WP | Bavistin, Benfil, Bengard, Benlate, Benmain, Bensaan, Carben, Carziim50, Dhanustin, Dhanustin 50 WP, Fungiguard, Gancarzin50, Glizim, Mintho, Tagstin, Tiara, Zoom | Green | 1 g | 10 g | 200 g | 500 g | Soil drench with this chemical, Leaves of fully grown vines should be thoroughly sprayed. |
| 2 | Hexaconazole 5 EC | Alert Creeper, Contaf, Corazole, Danzole, Force 5C, Hexaan, Hexacone, Hexadhan, Hexamax, Hexan, Hexazole, Mainex EC, Sitara, Strike, Titan, Topper, Topper plus EC, Xantho | Blue | 1 ml | 10 ml | 200 ml | 500 ml | Soil drench with this chemical, Leaves of fully grown vines should be thoroughly sprayed. |
| 3 | Propiconazole 25 EC | Bumper, Dhan, Pinade, Propiguard, Propik Final, Radar, Result, Tilt, Tilt Albu, Zetox | Blue | 1 ml | 10 ml | 200 ml | 500 ml | Soil drench with this chemical, Leaves of fully grown vines should be thoroughly sprayed. |
Extremely Toxic
Highly Toxic
Moderately Toxic
