Period of spray chemical (day after planting) At Stolon Tuber Maturity Recommended Rate Diseases/ Pests Prevention/ Control methods planting initiation initiation filling pesticides 20 l.) 0-7 7-15 15-30 30-45 45-90 90-120 Root-knot nematode(Meloidogyne 1. Cultivation measures: up overwintering field, deep - Dinotefuran 5 g/plant (basal (Kofoid & White) Chitwood) plowing and crop rotation. application) incognita 2. Physical measures: remove infested plant and tuber. - Fipronil 5 g/plant (basal 3. Chemical control: use pesticide application) - Carbofuran 10 g/plant (basal application) - Aphid (Myzus Sulzer and 1. Cultivation measures: up overwintering field, deep - Carbaryl 50 ml. persicae Glover) plowing and crop rotation. - Carbosulfan 50 ml. Ahis gossypii 2. Mechanical and physical measures: apply light traps, - Imidacloprid 30 ml. - Thrips (Thrips Karny, remove infested plant and tuber and egg mass, overwinter - Chlorpyrifos 30 ml. Hood) Scirtothrips dorsalis pupae, cocoons. 3. Biological control: develop natural enemies, apply BT, - Potato tuber moth (Phthorimaea - Cypermetthrin 30 ml. NPV, etc. Beauveria bassian Zeller) - Abamectin 30 ml. operculella 4. Chemical control: use pesticide - Imidacloprid 30 ml. - Leaf miner flies (Liriomyza brassicae - Cypermetthrin 30 ml. Riley) /Phosalone - Cutworm (Spodoptera exigua (Hubner), Spodoptera litura (Fabricius), (Hufnagel) Agrotis ipsilon
Diseases/ Pests Period of spray chemical (day after planting) Prevention/ Control methods Recommended pesticides Rate 20 l.) At planting Stolon initiation Tuber initiation filling Maturity 0-7 7-15 15-30 30-45 45-90 90-120 Root-knot nematode(Meloidogyne incognita (Kofoid & White) Chitwood) 1. Cultivation measures: up overwintering field, deep plowing and crop rotation. 2. Physical measures: remove infested plant and tuber. 3. Chemical control: use pesticide - Dinotefuran - Fipronil - Carbofuran 5 g/plant (basal application) 5 g/plant (basal application) 10 g/plant (basal application) - Aphid (Myzus persicae Sulzer and Ahis gossypii Glover) 1. Cultivation measures: up overwintering field, deep plowing and crop rotation. 2. Mechanical and physical measures: apply light traps, remove infested plant and tuber and egg mass, overwinter pupae, cocoons. 3. Biological control: develop natural enemies, apply BT, NPV, Beauveria bassian etc. 4. Chemical control: use pesticide - Carbaryl - Carbosulfan - Imidacloprid - Chlorpyrifos 50 ml. 50 ml. 30 ml. 30 ml. - Thrips (Thrips Karny, Scirtothrips dorsalis Hood) - Potato tuber moth (Phthorimaea operculella Zeller) - Cypermetthrin - Abamectin - Imidacloprid - Cypermetthrin /Phosalone 30 ml. 30 ml. 30 ml. 30 ml. - Leaf miner flies (Liriomyza brassicae Riley) - Cutworm (Spodoptera exigua (Hubner), Spodoptera litura (Fabricius), Agrotis ipsilon (Hufnagel)
tha_seed-potato_country-report.docx