Effect of Fatty Acid Methyl Esters on the Herbicidal Effect of Essential Oils on Corn and Weeds

Abstract

In this study, we tested whether the addition of fatty acid methyl esters (FAME) of edible oils would influence the herbicidal effect of the essential oils (EO) of fiber hemp and peppermint (Mentha×piperitaL.) against common lambsquarters, barnyardgrass, and corn. The herbicidal properties of a 2.5% concentration of each EO in water mixtures with FAME were evaluated as sprays in a pot experiment. The oil-FAME mixtures showed phytotoxic effects against common lambsquarters and barnyardgrass expressed by a reduction in plant length and aboveground and root biomass, as measured three weeks after foliar spraying. Corn was the most tolerant species to the tested mixtures. Sunflower FAME alone was safe on corn but reduced the growth of weeds. Peppermint EO alone was the most phytotoxic on all tested species. In conclusion, the mixture of peppermint EO with oilseed rape FAME was the best treatment; however, improvement onCh. albumwould be desirable for commercial-level control.

Toxicity bioassay of waste cooking oil-based biodiesel on marine microalgae

“…Quality biodiesel consists mainly of fatty acid methyl esters, the low toxicity and biodegradability of which determines their safety o for the environment. The low toxicity of FAMEs has been shown in several studies [48,49]. However, based on our results, sample B100 consisting of 77.6% of FAMEs exhibited the greatest aquatic toxicity among all the samples tested.…”

Impact of Seaweed Liquid Extract Biostimulant on Growth, Yield, and Chemical Composition of Cucumber (Cucumis sativus)

“…Interestingly, oleic acids are the most dominant fatty acids in seaweeds [45][46][47][48]. Tridecanoic acid methyl ester; γ-linolenic acid methyl ester; and 9,12-octadecadienoic acid, methyl ester, (E,E)-are FAMEs that are environmentally safe, nontoxic, and biodegradable compounds used for biodiesel and antimicrobial activities [42][43][44]. FAMEs have a high affinity for fatty compounds which are suitable for penetrating the plant cuticle, as well as facilitating the attachment of the sprayed mixture to the leaf surface [44].…”

The Phytotoxicity of Microencapsulated Peppermint Oil on Maize (Zea mays L.) Depending on the Type of Growth Substrate and Maize Cultivar

“…The earlier experiments showed that maize is susceptible to the phytotoxic effect of water preparations containing peppermint essential oil, i.e., water solutions of the oil affect germination of maize seeds and seedlings' growth [3]. When the peppermint oil is foliar sprayed as an oil-in-water emulsion, it causes burns of maize leaves [17,32].…”