El-Halafawy, A., Helalia, A., Hassanein, E., Khalifa, H. (2017). Effect of some Pre-and Post-emergence Herbicides on Weed Control in Bermudagrass Turf.. Journal of Plant Protection and Pathology, 8(7), 347-359. doi: 10.21608/jppp.2017.46332
A. A. El-Halafawy; A. A. A. R. Helalia; E. E. Hassanein; H. M. S. Khalifa. "Effect of some Pre-and Post-emergence Herbicides on Weed Control in Bermudagrass Turf.". Journal of Plant Protection and Pathology, 8, 7, 2017, 347-359. doi: 10.21608/jppp.2017.46332
El-Halafawy, A., Helalia, A., Hassanein, E., Khalifa, H. (2017). 'Effect of some Pre-and Post-emergence Herbicides on Weed Control in Bermudagrass Turf.', Journal of Plant Protection and Pathology, 8(7), pp. 347-359. doi: 10.21608/jppp.2017.46332
El-Halafawy, A., Helalia, A., Hassanein, E., Khalifa, H. Effect of some Pre-and Post-emergence Herbicides on Weed Control in Bermudagrass Turf.. Journal of Plant Protection and Pathology, 2017; 8(7): 347-359. doi: 10.21608/jppp.2017.46332
Effect of some Pre-and Post-emergence Herbicides on Weed Control in Bermudagrass Turf.
2Plant Protec. Dept., Fac. of Agric., Al-Azhar Univ., Cairo, Egypt.
3Weed Research Central Laboratory, ARC, Giza, Egypt.
Abstract
In recent years, Golf Turfgrass played an important role in national economic source which gained from tourism sector. Two field experiments were carried out in Katameya Heights Golf and tennis Resort, New Cairo City, Cairo, Egypt, during 2014 and 2015 summer seasons, to evaluate the efficacy of some pre– and post– emergence herbicides in controlling weeds associated with bermudagrass turf as well as to measure the tolerance degree of the bermudagrass turf to the tested herbicidal treatments. Fourteen herbicidal treatments,i.e., Barricade 65% WG (at 440 and 600g/ fed), Stomp extra 45.5% CS (at 1.2 and 1.7L/fed), Roustar 25% EC (at 1.5 and 2.0 L/ fed) Kerb 50% wp ( at 1.25 and 1.5kg/ fed), Sencor 70% wp at 300 kg/ fed, Granstar 75% DF at 8g/fed, Starane 20% EC at 200 cm3/fed, Panther 55% SC at 800 cm3/fed, combined tank mixture of Granstar 75% DF at 8g/fed + 2, 4 – D 72% EC at 1.0L/ fed + Starane 20% EC at 200cm3/fed, Envoke 75% WG at 8g/fed + mineral oil at 1.0L/ fed and hand weeding twice were evaluated comparing to the untreated check. The presented annual broadleaf weed species were Portulaceoleracea, Amaranthusretroflexus and Euphorbia prostrate whereas Bidenspilosa, Euphorbia hirta, Conyzaaegyptiaca, Sonchusoleraceus and Ammimajus, were rarely encountered. Moreover, Dactylocteniumaegyptium, Cenchrusbiflorus, Digitariasanguinalis and Setariaviridiswere the prevailedas annual narrowleaf weeds, whereas Cyperusrotunus was the only existed perennial narrowleaf weed. The results indicated that in the 1st season, the tested weed control treatments caused significant reduction percentage for total weeds through 30, 60 and 90 days after planting. Such reduction rates ranged from 41.2% for Sencor at 300g/ fed to 99.3% for Stomp extra at 1.7L/ fed at 30 days, from 42.5% for Granstar at 8.0g/fed to 96.5% for Ronstar at 2.0L/fed at 60 days and from 45.2% for tank mixture of Granstar at 8.0g + 2, 4-D at 1.0 L + Starane at 200 cm3/fed to 99.2% for Stomp extra at 1.7L/ fed at 90 days. In the 2ndseason, such reductionpercentage ranged from 74.7% for Kerb at 1.5kg/fed to 89% for Envoke at 8.0g + mineral oil at 1.0L/fed at 30 days, from 64.1% for Panther at 800g/fed to 82.5% for hand weeding twice at 60 days and from 66.0% for Kerb at 1.5 kg/fed to 82.0% for hand weeding twice at 90 days. Bermudagrass turf exhibited adequate tolerance (T) to all used herbicidal treatments at all growth stages during 2014 season and at 90 days only with, marginal tolerance (MT) in bermudagrass dry weight was observed at 30 and 60 days after planting in the 2nd season. Therefore, Barricade (at 600g), Stomp extra (at 2.0L) and Ronstar (at 2.0 L) may be used as selective pre–emergence herbicides to controlall annual weeds, Granstar and Starane as selective post-emergence herbicides to control the annual broadleaf weeds and Envoke as a selective post – emergence herbicide to control Cyperusrotundus without any adverse effects on bermudagrass turf under sprinkler irrigation in sandy soil.
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