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These days, it is important to use paraquat in Conservation Agriculture to prevent weed succession problems caused by glyphosate.”Professor Gembira Sinuraya, a weed scientist at North Sumatra University who also owns and manages an oil palm and rubber plantation and is involved with the Indonesian Weed Science Society.Paraquat effectively controls volunteer oil palmseedlings which grow as weeds from seeds in fallen fruit. Initially, plantation floors are cleared of vegetation, but are usually sown with legume cover crops.For example: Elaeidobius kamerunicus, a weevil introduced into South East Asia in the 1970’s eliminated the need for costly and inefficient hand pollinating, resulting in a sharp increase in oil yields Owls are encouraged for rodent control Leaving less competitive species of weeds provides a habitat for predators of insect pests and helps to prevent soil erosion.Weed management“Paraquat has always given good value, with fast and effective weed control, especially of difficult weeds like ferns, woody shrubs and volunteer oil palm seedlings, even in the rainy season.

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Noxious weeds include the perennial grass Imperata cylindrica, and the creeping broad-leaved weed Mikania micrantha which aggressively compete with the crop for nutrients and moisture.

Other noxious weeds affect spray operations, fertilizer application and harvesting because of the presence of thorns (Mimosa spp.) or dense coverage (Asystasia spp., Ischaemum spp., Pennisetum spp. The ferns Dicranopteris linearis, Lygodium flexuosum and Stenochloena palastris are found in mature shaded areas obstructing harvest.

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