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| Questions | ANSWERS |
|---|---|
| When will cashew tree start yielding | Grafts starts yielding at the age of 3 years and continue to be economical upto 30th year. The average yield of a cashew tree is 8-15 Kg/tree depending up on the variety chose for planting. |
| How to control Stem borer | To control the stem borer, extract mechanically by chiseling out the damaged area of the tree and swab the trunk & exposed roots with carbaryl 0.2% during April-May and October-November. |
| What are the insecticides recommended for control of tea mosquito | One of the following insecticides may be used for the above sprays in rotation. Monocrotophos 25% EC - 0.05%(1.5ml /litre of water Carbaryl 50%WP - 0.1% (2g/litre). |
| How to control tea mosquito | Tea mosquito attacks the tree every season during flushing, flowering and fruit set. To control this pest, a spray schedule involving three sprays as shown below are recommended. 1st spray- October-November at the emergence of new flushes 2nd spray- December- January (at the commencement of flowering) 3rd spray- January-February (at complete flowering-fruit initiation) |
| What are the major pests of cashew | Tea mosquito, stem borer, thrips, leaf miner and leaf blossom webber are the important pests of cashew. Of these Tea mosquito and stem borer are the major pests and causes economic damage to the crop. |
| Whether drip irrigation is effective on cashew | Drip irrigation is effective. For smaller plants water may be applied using mud pots and micro tubes. |
| Whether the cashew grafts need to be watered during the first year and what is the quantity and how to irrigate cashew? | Cashew plants require irrigation. 200 litres of water per adult tree may be applied at an interval of 15 days during January to May. |
| How and when to apply fertilizers to cashew | For young trees, broadcast the fertilisers over the entire tree basin (10cm deep) with a radial distance of 1 to 1.5 metre within the canopy spread. For adult trees, broadcast the fertilisers over the entire tree basin (15 cm deep) within a radial distance of 2 to 3 metres within the canopy spread, leaving half a metre from the tree trunk. |
| What is the quantity of fertilizer required for cashew and when it is to be applied | The fertiliser dose recommended for different States is indicated below. State N P2O5(gm/tree) K2O Kerala 750 325 750 Karnataka 500 250 250 Tamil Nadu 500 200 300 Andhra Pradesh 500 125 125 Orissa 500 250 250 Maharashtra 1000 250 250 1/3rd portion of the above recommended dose is to be applied during the first year, 2/3rd portion during second year and full dose from the third year onwards. Fertiliser should be applied in two split doses during pre-monsoon (May-June) and post monsoon (Sept-October). |
| What are the planting care to be taken up after planting | Immediately after planting, the basins of the plants are to be mulched with organic materials. From the first year onwards, cashew requires regular weeding, manuring, irrigation and control measures for pests and diseases. |
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