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The limitation of this parasite as a biocontrol agent is that it requires that some of the pathogen be present to act as a host for its growth. In plant species and cultivars with little or no powdery mildew resistance, the small amount of pathogen growth may cause an unacceptable amount of damage before A. quisqualis can control the fungus. [20]
Ampelomyces quisqualis is an anamorphic fungus that is a hyperparasite of powdery mildews.This parasitism reduces growth and may eventually kill the mildew. These mycoparasites can live up to 21 days on mildew-free host plant surfaces, attacking powdery mildew structures as soon as they appear. [4]
Magnesium perchlorate is a powerful oxidizing agent, with the formula Mg(ClO 4) 2. The salt is also a superior drying agent for gas analysis. Magnesium perchlorate decomposes at 250 °C. [2] The heat of formation is -568.90 kJ/mol. [3] The enthalpy of solution is quite high, so reactions are done in large amounts of water to dilute it.
In addition to its use to control fungal infection on grape vines, the mixture is also widely used to control potato blight, peach leaf curl and apple scab.Although it may be bad for the environment, [1] [2] some organic agriculture advocates allow its use, [citation needed] so is often used by organic gardeners in some parts of the world.
Methylethyl ketone oxime is the organic compound with the formula C 2 H 5 C(NOH)CH 3.This colourless liquid is the oxime derivative of methyl ethyl ketone. MEKO, as it is called in the paint industry, is used to suppress "skinning" of paints: the formation of a skin on paint before it is used.
Xerotine siccative was an oil drying agent used in the late 19th century. It is a type of terebene ; unlike standard terebenes, xerotine siccative doesn't become cloudy when mixed in an oil. [ 1 ] Replacing boiled oil, xerotine siccative was mixed with paint in order to speed up the drying process; [ 1 ] however, its use ceased when it was ...
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