All about potatoes.pdf - Vegetableipmasia.org

More documents

Recommendations

Info

7. MAJOR POTATO PESTS Lifecycle The stages of the spider mite’s lifecycle are egg, pre-adult and adult. Eggs hatch after three or four days. In both their pre-adult and adult stages spider mites are similar to spiders. They are pests during both pre-adult and adult stages. The pre-adult stage lasts for <strong>about</strong> 6-10 days. Adults can lay 10- 15 eggs a day. Damage symptoms This pest damages young parts of plants by puncturing them and sucking the juices. Affected leaves look spotty, while affected shoots curl up and do not grow. In severe infestations, leaves and shoots dry out and die. Management Management techniques for controlling spider mites: • Conserve natural enemies. Spider mites have many natural enemies, including predators (e.g. predatory mites), parasitoids and pathogens. • Avoid warm dry environmental conditions. Make sure you water plants, especially when you plant them in the dry season. Observation methodology It is best to make observations in the morning, by looking directly at the undersides of leaves or at new shoots. 46 ALL ABOUT POTATOES
7. MAJOR POTATO PESTS 7.10 Picture of major potato pests Lyriomyza huidobrensis – adult leafminer fly Leafminer fly damage Potato tuber moths (2 species) PTM larva in stem PTM damage on leaves PTM damage in tuber Thrips on underside of the leave Aphids on underside of leaves Whitefly adults A HANDBOOK TO THE ECOLOGY AND INTEGRATED MANAGEMENT OF POTATO 47
Page 2 and 3:
Authors Editors Contributors Transl
Page 4 and 5: HOW TO USE THIS MANUAL? HOW TO USE
Page 6 and 7: TABLE OF CONTENTS 5.4. Planting____
Page 8 and 9: TABLE OF CONTENTS vi ALL ABOUT POTA
Page 10 and 11: 1. INTRODUCTION Originally, IPM was
Page 12 and 13: 2. POTATO PLANT GROWTH AND DEVELOPM
Page 14 and 15: 3. SOIL • Observe the sediment: t
Page 16 and 17: 3. SOIL • Rainfall - Rain causes
Page 18 and 19: 3. SOIL field to field and at diffe
Page 20 and 21: 3. SOIL • Prevention of erosion a
Page 22 and 23: 3. SOIL application of the various
Page 24 and 25: 3. SOIL 16 ALL ABOUT POTATOES
Page 26 and 27: 4. SEED PREPARATION AND PRODUCTION
Page 32 and 33: 5. CULTIVATION PRACTICES Table 8: D
Page 34 and 35: 5. CULTIVATION PRACTICES 5.5 Hillin
Page 36 and 37: 5. CULTIVATION PRACTICES • Mainta
Page 38 and 39: 6. INSECT ECOLOGY 6.3 Insect life c
Page 40 and 41: 6. INSECT ECOLOGY 6.5 Beneficial in
Page 42 and 43: 6. INSECT ECOLOGY How to use it: Sq
Page 44 and 45: 6. INSECT ECOLOGY water or may alre
Page 46 and 47: 6. INSECT ECOLOGY F. Pesticide haza
Page 48 and 49: 7. MAJOR POTATO PESTS • Balancing
Page 50 and 51: 7. MAJOR POTATO PESTS pest has many
Page 52 and 53: 7. MAJOR POTATO PESTS to eat them.
Page 56 and 57: 7. MAJOR POTATO PESTS Cutworms in t
Page 58 and 59: 8. MAJOR NATURAL ENEMIES OF POTATO
Page 64 and 65: 9. DISEASE ECOLOGY • The environm
Page 66 and 67: 9. DISEASE ECOLOGY 58 ALL ABOUT POT
Page 68 and 69: 10. MAJOR POTATO DISEASES Managemen
Page 70 and 71: 10. MAJOR POTATO DISEASES • Destr
Page 72 and 73: 10. MAJOR POTATO DISEASES o In thei
Page 74 and 75: 10. MAJOR POTATO DISEASES B.3. Usin
Page 76 and 77: 10. MAJOR POTATO DISEASES Viral dis
Page 78 and 79: 10. MAJOR POTATO DISEASES Managemen
Page 80 and 81: 10. MAJOR POTATO DISEASES • Potas
Page 82 and 83: 10. MAJOR POTATO DISEASES Potato vi
Page 84 and 85: 11. WEED ECOLOGY You can manage wee
Page 86 and 87: 12. HARVEST AND POST-HARVEST MANAGE
Page 88 and 89: 12. HARVEST AND POST-HARVEST MANAGE
Page 90: GLOSSARY GLOSSARY Aphid Bacterial w
show all

All about potatoes.pdf - Vegetableipmasia.org

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?