Uptake of resistant varieties and integrated management packages for bean root rot disease in western Uganda

An experiment was carried out to find out the effective management practices to control the recently recorded pathogen (Fusarium solani) inciting root rot disease in Bael. Rampant incidence due to this pathogen is resulting in excess damage and reduction in acreage. Out of six fungicides screened in vitro, Topsin-M and Bavistin stood at first place in inhibiting the mycelial growth of F. solani. Topsin-M showed 100% inhibition at 50 ppm concentration whereas Bavistin showed 100% inhibition at 150 ppm concentration. Bavistin and Topsin-M as seed dressers effectively protected pre and post emergence seedlings mortality to the tune of 68.75 and 70.95%; 65.00 and 67.54%, respectively. Pre-sowing drenching of soil with Bavistin (0.4%) reduced the pre-emergence mortality from 26.50 to 8.25% and post-emergence mortality from 39.00 to 16.25%. The integration of seed treatment and pre-sowing drenching resulted in 72.51% control of pre emergence mortality and 82.92% control of post emergence mortality. In dual culture method, maximum inhibition of mycelial growth was recorded with Trichoderma harzianum (72.18%) followed by T. viride (67.70%). Glomus mosseae in combination with T. harzianum was found very effective against F. solani under screen house conditions as minimum pre emergence mortality (10.00%) and post emergence mortality (13.25%) against control where the values were 27.25% and 40.25%, respectively. The studies and results compiled here in provide an explanation for the potential of selected fungicides and antagonists in the control of bael root rot disease.

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Integrated Management of Root Rot Disease of Papaya (Carica papaya L.) caused by Fusarium solani

Journal of AgriSearch ◽

10.21921/jas.v3i2.11269 ◽

2016 ◽

Vol 3 (2) ◽

Author(s):

Rahul Kumar ◽

SK Singh

Keyword(s):

Root Rot ◽

Carica Papaya ◽

Integrated Management ◽

Disease Incidence ◽

Trichoderma Viride ◽

Thiophanate Methyl ◽

Soil Application ◽

Root Rot Disease ◽

Rot Disease ◽

Disease Free

Present study the most effective fungicides, plant extract, organic cake and bio-agent were evaluated in different combinations under field conditions for the management of papaya root rot disease. It was observed that there was 81.5% disease incidence in control while the lowest disease incidence (29.60%) was recorded in treatment (T ) (Comprising disease free seedling + mustard 13 cake (10%)+ wild garlic (10%) + dipping of seedlings in thiophanate methyl (0.1%) 30 min.+ soil drenching with thiophanate methyl (0.1%) solution three times (1st at time of transplanting, second at 3rd MAT and third at 5th month after transplanting)+ Soil application of Trichoderma viride @ 50g/plant three times (i.e. 1st at time of transplanting, second at 3rd MAT and third at 5th MAT)+ soil application of Pseudomonas florescence @ 50g/plant three times (i.e. 1st at time of transplanting, second at 3rd MAT and third at 5th MAT). This was followed by treatment T (37.0%), T (40.7%) and T 6 9 5 (44.4%). The effect of different treatments on yield was also studied and the highest fruit yield (1064.67 kg/plot) was obtained from the treatment T followed by treatment T (848.67 kg/plot) and 13 9 T (810.00 kg/plot) over the control T (209.00 kg/plot).

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