The Effect of Adjuvants, Spray Volume and Nozzle Type on Azoxystrobin Efficacy Against Leptosphaeria Maculans and L. Biglobosa on Winter Oilseed Rape

Ratajkiewicz, H.; Kierzek, R.; Karolewski, Z.; Wachowiak, M.

doi:10.2478/v10045-009-0070-9

Cited by 7 publications

(5 citation statements)

References 7 publications

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“…Pretreatment of host leaves with acibenzolar-s-methyl decreased the incidence of Phoma leaf lesions on seedling leaves (Liu et al 2007). Azoxystrobin (Amistar 250 SC at 0.7 dm 3 /ha) was found effective in decreasing blackleg infection of rape (Ratajkiewicz et al 2009). Cytokinin, especially 6-benzyl amino purine, is able to significantly reduce disease symptoms and mycelial growth within plant tissues .…”

Section: Chemical Controlmentioning

confidence: 99%

Diseases of Edible Oilseed Crops

Chattopadhyay¹,

Kolte²,

Waliyar³

2015

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AgriculturalSciences. He has more than 22 years of research experience in oilseed crop disease management and has significantly contributed in the areas of understanding the host-pathogen interactions, epi demiology, and integrated disease management in sunflower, safflower, sesame, peanut, and rape seed-mustard crops. He has published more than 70 peer-reviewed research papers and 4 books. Dr. Chattopadhyay has to his credit several academic awards and one patent. His significant research achievements include the development of Fusarium wilt-resistant genotypes in safflower, the iden tification of genotypes of Brassica juncea resistant to a mixture of isolates of Albugo candida, the development of a biocontrol agent formulation to reduce the use of fungicides in the management of major diseases of oilseeds (Brassica), and seed treatment (and foliar application) of aqueous bulb extract of Allium sativum for the management of major foliar diseases (Alternaria blight, white rust, powdery mildew, and Sclerotinia stem rot) of mustard. S.J. Kolte, professor of plant pathology (Retd.

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Section: Chemical Controlmentioning

confidence: 99%

Diseases of Edible Oilseed Crops

Chattopadhyay¹,

Kolte²,

Waliyar³

2015

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“…Fludioxonil, myclobutanil, and pyraclostrobin were fungicides with low EC50 values in fungicide evaluation for the management of Botryosphaeria canker of grapevines (33). Similarly, azoxystrobin caused a significant decrease of stem canker (Leptosphaeria maculans and L. biglobosa) in winter oilseed rape crops (34). In our field trial, azoxystrobin + propiconazole, and metconazole had the greatest inhibition of internal and external growths of D. ibérica, N. australe, N. luteum, N. parvum, and Phomopsis sp.…”

Section: Discussionmentioning

confidence: 99%

Effect of Fungicide Application on the Management of Avocado Branch Canker (Formerly Dothiorella Canker) in California

et al. 2013

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“…The alternate application of azoxystrobin and chlorothalonil presented in this study gave a chance to increase the probability of satisfactory biological results of PLB control using a spray volume of 300 L/ha. A systemic fungicide such as azoxystrobin may be able to maintain high performance using a mid-or low-volume spraying (Ratajkiewicz et al, 2009;Wise et al, 2010).…”

Section: Verification Of Sv Adjustment Based On Counting the Number Omentioning

confidence: 99%

Effect of the spray volume adjustment model on the efficiency of fungicides and residues in processing tomato

Ratajkiewicz

Kierzek

Raczkowski

et al. 2016

Span. j. agric. res.

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This study compared the effects of a proportionate spray volume (PSV) adjustment model and a fixed model (300 L/ha) on the infestation of processing tomato with potato late blight (Phytophthora infestans (Mont.) de Bary) (PLB) and azoxystrobin and chlorothalonil residues in fruits in three consecutive seasons. The fungicides were applied in alternating system with or without two spreader adjuvants. The proportionate spray volume adjustment model was based on the number of leaves on plants and spray volume index. The modified Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) method was optimized and validated for extraction of azoxystrobin and chlorothalonil residue. Gas chromatography with a nitrogen and phosphorus detector and an electron capture detector were used for the analysis of fungicides. The results showed that higher fungicidal residues were connected with lower infestation of tomato with PLB. PSV adjustment model resulted in lower infestation of tomato than the fixed model (300 L/ha) when fungicides were applied at half the dose without adjuvants. Higher expected spray interception into the tomato canopy with the PSV system was recognized as the reasons of better control of PLB. The spreader adjuvants did not have positive effect on the biological efficacy of spray volume application systems. The results suggest that PSV adjustment model can be used to determine the spray volume for fungicide application for processing tomato crop.

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The Effect of Adjuvants, Spray Volume and Nozzle Type on Azoxystrobin Efficacy Against Leptosphaeria Maculans and L. Biglobosa on Winter Oilseed Rape

Cited by 7 publications

References 7 publications

Diseases of Edible Oilseed Crops

Diseases of Edible Oilseed Crops

Effect of Fungicide Application on the Management of Avocado Branch Canker (Formerly Dothiorella Canker) in California

Effect of the spray volume adjustment model on the efficiency of fungicides and residues in processing tomato

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