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Cultural Practices and Resistant Varieties in Potato EndPrevious.

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Presentation on theme: "Cultural Practices and Resistant Varieties in Potato EndPrevious."— Presentation transcript:

1 Cultural Practices and Resistant Varieties in Potato EndPrevious

2 Summer deep ploughing (end of July to middle of August) to expose the different life stages of soil insect pests to expose them to predatory birds and desiccation by sunlight Fig. Activity of insectivorous birdsFig. White grubs collected by summer ploughing Source: www.ainpwgosa.com EndPrevious Next

3 Follow crop rotation to avoid pest infestation in potato Crop Sequence: Rice-Rice-Potato Summer Rice – potato Rice-Potato-Cowpea Rice-Potato-Green gram EndPrevious Next

4 Adjustment of planting and harvesting time for avoidance of insect infestation Fig. Harvesting of potatoes Source:http://www.angelicorganics.com/Newsletters/2008Week16VegNewsWed.html EndPrevious Next

5 Maintain weed free crop initially up to six weeks after planting by resorting to two hand hoeing / earthing up operations at 3 rd and 6 th weeks of planting Fig. Earthing up in potato field Source: AINP on white grub, Department of Entomology, Assam Agricultural University, Jorhat-13 EndPrevious Next

6 Ensure growing of healthy crops with optimum plant population (1,30,000 plants/ha ) by using recommended seed rate (22.5-25 q/ha) and balanced doses of fertilizers (NPK @ 60:50:50 in rainfed and 60:100:100 in irrigated condition) Adjustment of planting time of summer crop in hilly areas to prevent aphid attack EndPrevious Next

7 Prepare high ridges to avoid exposure of seed tubers to egg laying by potato tuber moth Fig. High ridging in potato Source: AINP on white grub, Department of Entomology, Assam Agricultural University, Jorhat-13 EndPrevious Next

8 Keeping plant debris/green grasses at different locations of cut worm infested field in the evening, which serve as hiding places for cut worm larvae, where they could be destroyed next day Fig. Cut worms exposed from under green grass Source: http://www.google.com/imgres?imgurl=http://www.saferbrand.com/resource EndPrevious Next

9 Allow time for previous crop residue to decompose Fig. Decomposition of crop residues Source: http://www.google.com/imgres?imgurl=http://farm2.static.flickr.com EndPrevious Next

10 Rouging of volunteer potato plants to reduce aphid infestation Fig. Rouging of volunteer potato plants Source: http://www.google.co.in/search?hl=en&biw=1090&bih=462&gbv=2&tbm=isch&sa EndPrevious Next

11 Removal and destruction of infested tubers to check tuber moth infestation in both storage and field conditions Fig. Potato tubers infested with tuber moth Source: http://thesecondgreenrevolution.blogspot.com/2009_11_01_archive.html EndPrevious Next

12 Do not keep harvested potato tubers in the field to prevent egg laying by tuber moth X Fig. Keeping harvested potato in field Source:http://www.google.com/imgres?imgurl=http://w hrefresh.com/ Fig. Potato infested by tuber moth Source:http://www.google.com/imgres?im gurl=http://www.inra.fr/hyppz/IMAGES EndPrevious Next

13 Grow potato in well pulverized soil. Proper soil pulverization decreases wireworm population both by direct injury and by exposing them to desiccation or predation by birds Fig. wire worms Source:http://www.google.co.in/imgres?i mgurl=http://www.fruitandveggie.com Fig. Proper pulverization of soil decreases wire worm population Source:http://www.google.co.in/imgres?imgurl=http://cdn.wn.com EndPrevious Next

14 Standing water for short period before sowing can help to eliminate the eggs of mole crickets Fig. Standing water in field for short period Source: http://photography.nationalgeographic.com/photography/photo- tips/landscape-photos/#/potato-field-india_21021_600x450.jpg EndPrevious Next

15 Construct raised nursery to reduce the seedling damage by mole crickets Fig. Construction of raised potato nursery Source: http://www.kvktuensang.org.in/gallery.html EndPrevious Next

16 Potato crop irrigated at 30 and 60 days after germination reduces red ant infestation in potato Fig. Irrigation in potato field Source: AINP on white grub, Department of Entomology, Assam Agricultural University, Jorhat-13 EndPrevious Next

17 Liming @ 3.5 quintal/hectare prior to sowing of potato tubers reduces red ant infestation Fig. Lime Source: http://www.google.com/imgres?imgurl EndPrevious Next

18 Pulling and burning of heavily mite infested potato plants Fig. Burning of potato plants Source: / http://evapm.deviantart.com/art/Burning-Potato-Stems-139402088 EndPrevious Next

19 Abundant ground water, straw retention technique and soils with high organic matter content provide ideal moisture level and shelter to snails and slugs. In snail endemic areas such conditions may be discouraged to a preferable extent or kept at optimum Fig. Snails and slugs Source http://www.google.com/imgres?imgurl=http://ddandkw.com EndPrevious Next

20 Avoid planting new crops downwind from those infested with mites, as the mites will be spread to the new crop by the wind. Resistant variety Kufri Chandramukhi may be grown in aphid/leaf roll/ potato virus Y endemic areas End Previous

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