Jackfruit (Artocarpus heterophyllus)
Leaf spot (C.O.: Pestalotiopsis clostica, Colletotrichum gloeosporioides)
Symptoms
- Spots appeared on foliage.
- Spots are either white or grey with brown margin.
- Later, these spots may combine or enlarge.
- Affected leaves become yellow and drop prematurely
Management
- The disease is effectively controlled by spraying Bordeaux mixture 1% (1 ml in 1 litre of water)
Chemical Control
| Sl.No | Generic Name | Trade Name | Color code | Dosage/litre | Knapsack Sprayer (Capacity 10L) | Recommendation | Remarks | |
|---|---|---|---|---|---|---|---|---|
| Per acre (200 L) | Per 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 | 2-3 g/litre of water | 20-30 g | 400-600 g | 1-1.5 kg | |
| 2 | Carbendazim 50 WP | Bavistin, Benfil, Bengard, Benlate, Benmain, Bensaan, B-stin 50 WP, JK Stein 50 WP, Carben, Carziim 50, Dhanustin, Dhanustin 50 WP, Fungiguard, Gancarzin 50, Glizim, Mintho, Tagstin, Tiara, Zoom | Green | 1 g/litre of water | 10 g | 200 g | 500 g | |
| 3 | Thiophanate methyl 70 WP | Maxim, Roko, Topmast, Uppay | Blue | 1.5 g/litre of water | 15 g | 300 g | 750 g | |
Extremely Toxic
Highly Toxic
Moderately Toxic
