Bacterial blight of pomegranate9/12/2023 Pruning and destruction of diseased twigs.The diseased fruits should be collected and destroyed.The disease is serious during September to November. Secondary source of inoculums is wind born conidia.Primary source of inoculums is infected leaves, diseased plant debris.The affected areas in the twigs become flattened and depressed with raised edge.Black and elliptic spots appear on the twigs. Light zonate brown spots appear on the leaves and fruits.Cercospora fruit spot : Cercospora punicae Next day or another day spray with 1 g ZnSo 4 +1 g MgSo 4 +1 g Boron +1g CaSo 4 per lit of water.Ĥ.Spray 0.5 g Streptomycin Sulphate or Bacterinashak +2.5 g Copper oxy chloride per litre of water.After Ethrel spraying or defoliation, Paste or smear with 0.5g Streptomycin Sulphate + 2.5g Copper oxy chloride + 200g red oxide per lit of water.Before pruning it should be sprayed with 1% Bordeaux mixture.Give minimum four month rest after harvesting the fruits.Bahar should be done in Hasta or Ambe bahar.Pruning affected branches, fruits regularly and burning.Selection of disease free seedlings for fresh planting.Secondary source of inoculum is Wind splashed rains.Ĭontinuous/ intermittent rainfall for a longer period, congenial maximum (29.4 to 35.6 0C) and minimum temperature (19.5 to 27.3 0C) and relative humidity (63 to 87 %) were found favourable for the development and spread of the disease. Primary source of inoculum is infected cuttings. Spots on fruits were dark brown irregular slightly raised with oily appearance, which split open with L-shaped cracks under severe cases.The pathogen also infects stem and branches causing girdling and cracking symptoms.Appearance of one to several small water soaked, dark coloured irregular spots on leaves resulting in premature defoliation under severe cases.Bacterial blight: Xanthomonas axonopodis pv. Among the contact fungicides Chlorothalonil (2g/l) followed by Mancozeb (2g/l) were more efficacious.ģ. Spraying of systemic fungicides namely Hexaconazole / Thiophanate methyl 1g/lit/ Carbendazim 1g/lit at 20 days interval is quite effective.Spraying of Difenconazole 25 EC at 1.0 ml/lit or Prochloraz 45 EC at 0.75ml/lit were effective against anthracnose disease.Carbendazim/ Difenconazole or Thiophanate methyl at 0.25ml/lit sprays at fort-nightly intervals have been found effective.It also infects Mango, Guava, and Papaya etc. Secondary source of inoculums is wind born conidia. Primary source of inoculums is infected leaves. The disease is severe during August-September when there is high humidity and the temperature between 20-27✬. Diseased portions appear with minute, black dots representing acervuli.Both tender and mature fruits develop spots which are initially circular later becoming irregular, brown to dark brown covering the fruit partly or wholly with sunken centres.Appears as small regular or irregular dull violet or black leaf spots with yellowish halos.Anthracnose: Colletotrichum gloeosporioides Spraying Mancozeb (0.25%) or Captaf (0.25%) effectively controls the disease.Ģ.All the affected fruits should be collected and destroyed.The fruits get affected which become pale and become unfit for consumption.As the disease advances these spots, coalesce to form larger patches and the fruits start rotting.Small reddish brown circular spots appear on the fruits.Alternaria fr uit sp ot: Alternaria alternata This nutrient dense, antioxidant rich fruit has been revered as a symbol of health, fertility and eternal life. Pomegranate is an original native of Persia. One of the oldest known fruits found in writings and artefacts of many cultures and religions. There is no other fruit crop that has high medicinal value compared to that in pomegranate. Pomegranate is cultivated in home gardens especially as a medicinal plant and as a fruit tree.
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