Limited work on disease and insect pest management was taken up in the project. Everyone should know the importance of medicinal and aromatic plants. 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 (Cymbopogonspp.)||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.|