Abstract
The efficacy of sterilizing agents, copper oxychloride, vegetable oil and agrowipe (botanic neem extract) against crown gall disease of roses in Kericho, Kenya
Highlights
Physical agents such as heat and ultraviolent light, chemical agents such as disinfectants and antibiotics have been used to prevent bacterial contamination and spread (Hauser, 2013)
There were significant differences (p 0.05) on the yield and quality of marketable rose stems on plots treated with vegetable oil, botanic neem extract and copper oxychloride at 1.0 g/L
Results show that undiluted vegetable oil and botanic neem extract effectively inhibited growth of crown gall tumors and fresh galls compared to copper oxychloride 1.0 g/L and untreated control plots at (p 0.05)
Summary
Physical agents such as heat and ultraviolent light, chemical agents such as disinfectants and antibiotics have been used to prevent bacterial contamination and spread (Hauser, 2013). Disinfectants are chemical substances that kill or retard growth of microorganisms while antibiotics are substances produced by living microbes that inhibit growth of microbes (McManus and Stockwell, 2001). Natural products known as botanical pesticides which exhibit antimicrobial activity have been used for a long time in controlling microorganisms causing plant and human diseases (Mitali et al, 2012). Kenya is a lead exporter of cut flowers to the European Union with a market share of about 38% (Kenya Flower Council, 2019). In 2018, the export of flowers from Kenya earned the country Ksh.113.16 billion up from Ksh
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