Limited work on disease and insect pest management was taken up in the project. However, recommendations for management of important diseases and insect pests are as follows:
|Crop||Disease||Etiology||Findings & Recommendations|
|Opium poppy (Papaver somniferum||Downy mildew||Peronospora arborescens||Seed treatment with metalaxyl and four sprays of metalaxyl @ 0.2% at 35, 55, 75 and 95 days after sowing found most effective in reducing primary and secondary disease incidence. It also increased latex yield (26.7%) and seed yield (24.7%) over control.
Jawahar Opium poppy – 540 having some resistance against the disease has been recommended for M.P.
|Senna (Cassia angustifolia||Leaf spot||Alternaria alternata||Spraying of Bordeaux mixture, benomyl, captafol and copper oxy chloride is recommended.|
|Isabgol (Plantago ovata||Downy mildew||Peronospora alta P. plantaginis Psendoperonospora plantaginis||Seed treatment with metalaxyl at 4g/kg seed and 3 sprays of metalaxyl (0.2%) at 15 days interval starting from first appearance is best for disease control. December sown crops are mostly disease free.|
|Sarpagandha (Rauvolfia serpentina||Leaf blight & Bud rot||Alternaria tenuis||Spraying of maneb (0.3%) or rovaral (0.2%). Seed treatment with contact fungicides.|
|Liquorice (Glycyrrhiza glabnra||Leaf spot||Cercospora cavarae||Maneb or zineb spray at 0.2%.|
|Long pepper (Piper longum||Leaf spot & rotting||Colletotrichum & Cercospora spp.||Spraying of Bordeaux mixture – one during May and 2-3 sprays during rainy season.|
|Khasi kateri(Solanum viarum||Wilt||Fusarium oxysporum||Direct sowing of seeds instead of transplanting of seedlings can reduce the disease incidence|
|Palmarosa & Lemongrass (Cymbopogon spp.)||Red leaf spot||Collectorichum graminicola||Two sprays of carbendazim (0.1%) or 3 sprays of maneb (0-.3%) starting from first appearance of disease at 20 days or 10-12 days intervals, respectively.|
|Rose (Rosa damascena||Die back||Diplodia rosarum||Pruned ends of the shoots should be treated with copper fungicides.|
|Ambrette seeds (Abelmoschus moschatus||Anthracnose||Collectotrichum hibiscicum||Seed treatment with contact fungicides and spray of Bordeaux mixture are recommended.|