S. T. Yenjerappa
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View article: Molecular characterization and exploration of streptomycin resistance genes in Xanthomonas campestris pv. campestris isolates from diverse agro climatic regions of Karnataka state, southern India
Molecular characterization and exploration of streptomycin resistance genes in Xanthomonas campestris pv. campestris isolates from diverse agro climatic regions of Karnataka state, southern India Open
Xanthomonas campestris pv. campestris ( Xcc ), which causes black rot, is a major pathogen of commercial importance affecting crucifers in India. Lack of resistant cultivars and effective management practices led to the use of antibiotics …
View article: In vitro Evaluation of Antibiotics, Antibacterial Chemicals, Bioagents, and Organic Extracts for the Management of Bacterial Blight of Rice (Xanthomonas oryzae pv. oryzae)
In vitro Evaluation of Antibiotics, Antibacterial Chemicals, Bioagents, and Organic Extracts for the Management of Bacterial Blight of Rice (Xanthomonas oryzae pv. oryzae) Open
Xanthomonas oryzae pv. oryzae, the pathogen causing bacterial blight of rice, is an age old disease that has caused serious threat to the crop. Hence, this experiment was conducted using different commercially available antibiotics, antiba…
View article: Influence of Different Culture Media on Growth and Sporulation of Colletotrichum capsici
Influence of Different Culture Media on Growth and Sporulation of Colletotrichum capsici Open
Aim: To know the best culture media for growth and development of Colletotrichum capsici causing chilli anthracnose.
Study Design: Twelve different culture media were selected and three replications were maintained.
Place and Duration of…
View article: Influence of Weather Parameters on the Incidence and Severity of Guava Scab Caused by Pestalotiopsis psidii (Pat.)
Influence of Weather Parameters on the Incidence and Severity of Guava Scab Caused by Pestalotiopsis psidii (Pat.) Open
Guava (Psidium guajava) is an important tropical fruit crop of India and is known as “apple of the tropics”. It is grown and utilized as an important fruit in tropical countries like India, Indonesia, Pakistan, Bangladesh and South America…
View article: Studies on Symptomatology, Morphological and Molecular Characterisiation of Erysiphe cichoracearum Causing Powdery Mildew of Okra
Studies on Symptomatology, Morphological and Molecular Characterisiation of Erysiphe cichoracearum Causing Powdery Mildew of Okra Open
Okra (Abelmoschus esculentus (L.) Moench) is a globally important annual vegetable belongs to family malvaceae, it is most broadly distributed vegetable all over the world. Among the fungal diseases affecting okra crop, powdery mildew caus…
View article: Screening of Okra Genotypes against Powdery Mildew under Natural Epiphytotic Conditions
Screening of Okra Genotypes against Powdery Mildew under Natural Epiphytotic Conditions Open
Okra (Abelmoschus esculentus (L.) Moench) is a globally crucialannual vegetable belonging to family malvaceae, it is the most broadly distributed vegetable all over the world. Among the fungal diseases affecting okra crops, powdery mildew …
View article: Correlation of Weather Variables on Emergence of a Virus Disease Bud Necrosis Disease of Greengram Incited by Soybean Yellow Mottle Mosaic Virus at Raichur, Karnataka
Correlation of Weather Variables on Emergence of a Virus Disease Bud Necrosis Disease of Greengram Incited by Soybean Yellow Mottle Mosaic Virus at Raichur, Karnataka Open
Greengram [(Vigna radiata (L.) Wilczek] is the important pulse crop after chickpea and pigeonpea cultivated in India which is called as “Queen of pulses”, the crop is proned to be infected by many fungal and bacterial diseases. In recent y…
View article: Investigation on the Severity of Alternaria Blight of Pigeonpea and its Characterisation in Northern Karnataka
Investigation on the Severity of Alternaria Blight of Pigeonpea and its Characterisation in Northern Karnataka Open
Background: The Alternaria blight of pigeonpea is considered as an important foliar disease and poses threat to the pigeonpea cultivation due to change in the climatic condition, cultivation practices and variation in pathogenic character.…
View article: In vitro Bioefficacy of B. subtilis Isolates against Ralstonia solanacearum Causing Bacterial Wilt of Brinjal
In vitro Bioefficacy of B. subtilis Isolates against Ralstonia solanacearum Causing Bacterial Wilt of Brinjal Open
Bacterial wilt caused by Ralstonia solanacearum, a genetically diverse soil-borne pathogen with a wide host range, is a devastating plant vascular disease (Hayward, 1991). No effective chemical product is available for Ralstonia-induced wi…
View article: Present status of Alternaria leaf blight disease of sunflower in north eastern Karnataka
Present status of Alternaria leaf blight disease of sunflower in north eastern Karnataka Open
Sunflower is one of the most important edible oilseed crops in India. Among the major diseases of sunflower, Alternaria leaf blight caused by Alternaria helianthi (Hansf.) Tubaki and Nishihara is most devastating disease in Karnataka. A ro…
View article: Severity of Newly Emerging Pomegranate Wilt caused by Ceratocystis fimbriata Ellis and Halst. in North Karnataka, India
Severity of Newly Emerging Pomegranate Wilt caused by Ceratocystis fimbriata Ellis and Halst. in North Karnataka, India Open
Pomegranate (Punica granatum L.) is an ancient fruit, belonging to the family Punicaceae. It is one of the vital cash crops of our country and it is commonly called as fruit of paradise. The successful cultivation of pomegranate is often s…
View article: Isolation and bio-efficacy screening of native Trichoderma species as a potential biocontrol agents against pomegranate wilt caused by Ceratocystis fimbriata Ellis and Halst
Isolation and bio-efficacy screening of native Trichoderma species as a potential biocontrol agents against pomegranate wilt caused by Ceratocystis fimbriata Ellis and Halst Open
The main emphasis of the present study was isolation and antagonistic screening of native Trichoderma isolates against Ceratocystis fimbriata Ellis and Halst. The causal agent of wilt of pomegranate, which cause estimated losses up to 30%.…
View article: Survey on Tip-over Disease of Banana caused by Erwinia carotovora subsp. carotovora (Jones) Holland in Parts North Eastern Karnataka, India
Survey on Tip-over Disease of Banana caused by Erwinia carotovora subsp. carotovora (Jones) Holland in Parts North Eastern Karnataka, India Open
Tip-over disease in Banana is an important bacterial disease caused by Erwinia carotovora subsp. Carotovora. The disease cause severe yield loss in banana particularly in tissue cultured plantations. A roving survey was conducted to assess…
View article: Evaluation of antibiotics, antibacterial chemicals and bio-agents against citrus canker caused by Xanthomonas axonopodis pv. citri (Hasse)
Evaluation of antibiotics, antibacterial chemicals and bio-agents against citrus canker caused by Xanthomonas axonopodis pv. citri (Hasse) Open
Six antibiotics, two antibacterial chemicals and five bio-agents were evaluated by in vitro against Xanthomonas axonopodis pv.citri (Hasse).Among the different antibiotics and antibacterial chemicals, Streptocycline (10.84 mm) and copper o…
View article: Biological control of Fusarium wilt of chillies using Trichoderma spp.
Biological control of Fusarium wilt of chillies using Trichoderma spp. Open
Chilli wilt caused by Fusarium solani is a serious menace in black cotton soils of Karnataka. Wilt incidence of 19.8 to 31.5 and 7.5 to 12.3% was recorded in major chilli growing regions of Karnataka during 2011–12 and 2012–13 respectively…