Vol. 8, Issue 2 (2020)
Integrated management of Alternaria blight of safflower caused by Alternaria carthami under field conditions
Author(s): SS Wagh, AP Suryawanshi, SL Badgujar and CV Ambadkar
Abstract: Safflower (Carthamus tinctorius L.), is one of the most popular oilseeds crop grown throughout the world. The crop suffers many fungal diseases among that leaf spot/blight caused by Alternaria carthami (Chowdhury) has become one of the major constraints in the production and productivity of safflower all over the country as such and in the state of Maharashtra also. The disease has been reported to cause 25 to 60 per cent yield losses in safflower. Management of safflower Alternaria blight with chemicals alone needs to be discouraged due to their ill- effects. Therefore, present field experiments were conducted to manage the disease with integration of the effective fungicides, bioagents and phytoextracts under natural epi-phytotic condition at VNMKV, Parbhani, Maharashtra. The experiment was designed with RBD and all the treatments replicated thrice using Cv. Manjira, during Rabi, 2013 and 2014. Results of the integrated management studies revealed that all treatments were found effective in controlling Alternaria blight disease. However, comparatively least average disease intensity (14.34 %) and its highest reduction (74.36 %) were recorded with the combination seed treatment and foliar spray in treatment T9 of T. viride ST @ 10 g/kg + Garlic clove extract ST @ 10 ml/kg + Hexaconazole FS @ 0.1 %, followed by treatment T4 of Hexaconazole ST @ 1 ml/kg + It’s FS @ 0.1 % (Av. PDI : 15.46 %, Av PDC : 72.37 %) and T10 of T. viride ST @ 1 ml/kg + Garlic clove extract ST @ 10 ml/kg + Mancozeb FS @ 0.25 % (Av. PDI : 17.25 %, Av. PDC : 69.16 %). Significant increase in seed yield up to 54.56 per cent and highest ICBR (3.22) was recorded in treatment T9 (T. viride ST @ 10 g/kg + Garlic clove extract ST @ 10 ml/kg + Hexaconazole FS @ 0.1 %).
DOI: 10.22271/chemi.2020.v8.i2ad.9040
Pages: 1957-1962 | 557 Views 106 Downloads
download (6472KB)
How to cite this article:
SS Wagh, AP Suryawanshi, SL Badgujar, CV Ambadkar. Integrated management of Alternaria blight of safflower caused by Alternaria carthami under field conditions. Int J Chem Stud 2020;8(2):1957-1962. DOI: 10.22271/chemi.2020.v8.i2ad.9040