Chloroethane:phosphonic acid hydroxy:quinoline compsn. - for accelerating abscission esp. defoliation of plants, esp. nursery plants, for ease of fruit picking

• Main Author: MAGDA TETENYI NEE ERDOSI, TODOR PFLIEGEL, JOSEPH SZEJTLI, ISTVAN RACZ ET GYORGY VERMES
• Format: Patent
• Language: English; French
• Published: 27.04.1979
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; TRAPPING

Plant growth regulating compsn. of 0.001-40% wt. of 2-chloroethanephosphonic acid or one of its salts and a water-sol. salt of 8-hydroxyquinoline, pref. the sulphate, in a molar ratio of 1:0.5-20 and 1-10:1, together with a dilutent, opt. contg. surfactants and/or buffers. Presence of the 8-hydroxyquinoline increases the rate of abscission of plants and induced by 2-chloroethane-phosphonic acid. Specific uses include defoliation of nursery plants such as peaches, cherries, pears, apples, grapes, or young rose plants. This makes peaches, for example, more visible and makes the mechanical harvesting of peaches, cherries, and other fruits and also nuts, easier. Composition accélérant l'abscission des plantes, et sa préparation. La composition selon l'invention comprend comme ingrédients actifs de 0,001 à 40 % en poids d'acide 2-chloro-éthane-phosphonique ou d'un sel de ce corps et un sel soluble dans l'eau de 8-hydroxy-quinoléine ou de préférence d'un sulfate de 8-hydroxy-quinoléine dans un rapport molaire variant de 1,0,5 à 1:1 à 10:1, respectivement, des supports solides ou liquides et, si on le désire, des agents tensio-actifs et/ou des excipients et un tampon en quantité nécessaire pour compléter à 100 %. Application à abscission de plantes.