Integrated Pest Management for Onion in India

Gajendran, G.; Dinakaran, D.; Mohankumar, S.; Karthikeyan, G.; Muniappan, R.

doi:10.1007/978-94-024-0924-6_8

Cited by 2 publications

(4 citation statements)

References 51 publications

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“…From the economic point of view, it was apparent that the use of Bombay-Red variety along with three-time spray frequencies of RG at a 14-day interval was the most profitable over all the other treatments. Gupta and Gupta (2013) and Gajendran et al (2016) reported similar results on the profitability of onion integrated disease management approaches in India. Bulb yield losses were varied among plots sprayed with different spray frequencies on each onion variety (Table 6).…”

Section: Economic Feasibility and Yield Loss Analysismentioning

confidence: 60%

“…In line with this study, Hafiz (2009) and Jhala and Mali (2017) reported that the integration of host resistance and fungicide spray frequencies protected the onion varieties from high PB epidemics and increased bulb yield parameters. Savitha et al (2014) and Gajendran et al (2016) also reported that the integration of host resistance and fungicide spray frequencies significantly reduced…”

Section: Yield Parametersmentioning

confidence: 98%

“…Previous researchers reported that the highest disease pressure resulted from the highest disease development on plots that were not managed with any combinations of crop varieties and fungicide application (Mishra et al, 2014;Gajendran et al, 2016;Jhala and Mali, 2017). In this regard, the weather variable during the growing seasons also played a significant role in the epidemic development of PB of onion.…”

Section: Disease Epidemicsmentioning

confidence: 99%

“…The major diseases that influence onion production include purple blotch (Alternaria porri), downy mildew (Peronospora destructor), and basal rot (Fusarium oxysporum f.sp. cepae) (Schwartz and Mohan, 2008;Gajendran et al, 2016). These diseases are the three major economically important fungal diseases of onion in Ethiopia (Mishra et al, 2014;Haile et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Effect of integrated management on purple blotch (Alternaria porri (Ellis) Cif.) progression and bulb yield of onion at Arba Minch in Southern Ethiopia

Mengesha

Yae

Cheleko

2022

Arch. Agric. Environ. Sci.

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A field experiment was conducted at Arba Minch area, southern Ethiopia during the 2018 and 2019 cropping seasons to determine the integrated effects of varieties and fungicide spray frequencies on onion purple blotch (PB) epidemics, bulb yields, and economic returns. Fifteen treatment combinations consisting of three onion varieties and five fungicide spray frequencies were arranged in a factorial experiment in a randomized complete block design with three replications. Integrating varieties with fungicide spray frequencies significantly reduced onion PB epidemics and increased bulb yields and economic returns. Due to four times spray of ridomil gold (RG) at 14-day interval, PB severities as low as 35.7, 42.2, and 58.9% were recorded on Nasik-Red, Bombay-Red, and Adama-Red varieties, respectively. The lowest area under the disease progress curve of 625.3, 706.7, and 1131.1%-days was also recorded on Nasik-Red, Bombay-Red, and Adama-Red varieties, respectively, due to four sprays of RG at a 14-day interval. Three times spray of RG at 10-day interval gave the highest bulb yields of 33.4, 38.9, and 23.7 t ha-1 on Nasik-Red, Bombay-Red, and Adama-Red varieties, respectively. The results showed the existence of variability in onion genetic resistance that was complemented by fungicide spray frequencies against PB epidemics to increase bulb yields. The use of Bombay-Red variety along with three and four-time spray frequency of RG was found to be the most effective option in reducing PB epidemics and increasing onion bulb yields. However, the use of Bombay-Red variety along with three-time spray frequency of RG could be recommended, because of its highest economic returns, to farmers in the study areas and elsewhere with similar agro-ecologies to manage PB and sustain onion production and productivity in the country.

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Section: Economic Feasibility and Yield Loss Analysismentioning

confidence: 60%

Section: Yield Parametersmentioning

confidence: 98%

Section: Disease Epidemicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of integrated management on purple blotch (Alternaria porri (Ellis) Cif.) progression and bulb yield of onion at Arba Minch in Southern Ethiopia

Mengesha

Yae

Cheleko

2022

Arch. Agric. Environ. Sci.

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Development of shrimp shells-based compost and plant-based pesticide using bio-activators from Golden Apple Snails and their effects on the kenaf plant growth and pest population

2017

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Abstract. Rusmini, Manullang RR, Daryono. 2017. Development of shrimp shells-based compost and plant-based pesticide using bioactivators from Golden Apple Snails and their effects on the kenaf plant growth and pest population. Nusantara Bioscience 9: 260-267. Kenaf (Hibiscus cannabinus L) cultivation generally uses chemical fertilizers and pesticides to increase production despite the adverse effects of those chemicals toward environmental ecosystem. Meanwhile, there are a lot of unutilized wastes produced from agriculture and fishery. This study aimed to develop the best bio-activator from Golden Apple Snails and spices to decompose the shrimp shells waste. The bioactivator was utilized for the production of plant-based pesticide to control pests in kenaf plant, and shrimps-shells-based composts to improve kenaf plant growth. This study employed a Randomized Block Design with two factorials. The first factor was the shrimp shells-based composts (K) which consist of three levels, and the second factor was the plant-based pesticide (P) which also consists of three levels. Each of experiment was repeated twice. Thus, in total there were 18 treatments. The shrimp shells-based composts had a pH value of 8.79, Potassium (K) 8.13 %, organic carbon (C) 17.45%, Nitrogen (N) 3.62%, Phosphorus (P) 2.27%; Magnesium (Mg) 0.59%, and Calcium (Ca) 7.64%; and a C/N ratio of 4.82. Kenaf plant height at 6 and 9 weeks after planting (WAP) showed significant differences upon the shrimp shells-based composts treatments. At 6 weeks after planting, kenaf plant diameter showed significant differences upon the composts treatment, while at 9 weeks after planting, the plant diameter indicated significant differences upon both the compost and plant-based pesticide applications. Pest populations that were present in kenaf plants were caterpillars, bugs, and beetles.

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Integrated Pest Management for Onion in India

Cited by 2 publications

References 51 publications

Effect of integrated management on purple blotch (Alternaria porri (Ellis) Cif.) progression and bulb yield of onion at Arba Minch in Southern Ethiopia

Effect of integrated management on purple blotch (Alternaria porri (Ellis) Cif.) progression and bulb yield of onion at Arba Minch in Southern Ethiopia

Development of shrimp shells-based compost and plant-based pesticide using bio-activators from Golden Apple Snails and their effects on the kenaf plant growth and pest population

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