|
Crop
|
Disease
|
Etiology
|
Findings
& Recommendations
|
|
Medicinal
Crops
|
|
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
|
