Abstract: A preservative for plants is described whose active ingredient(s) are the compounds selected from the group consisting of olefin compounds and salts and esters thereof, N-(20chloro-4-pyridyl)ureas, dipicolnic acid and derivatives and salts thereof, epoxy compounds and salts and esters thereof, and SH-reagents. The preservative is usable for keeping the freshness of plants, in particular fruits, vegetables and cut flowers, and cut flowers for a long period of time.

Abstract: A composition for protecting culture plants from the phytotoxic action of herbicidally active chloracetanilides contains as active ingredient an acylamine derivative of the formula I ##STR1## wherein X is oxygen, sulfur, --SO-- or --SO.sub.2 --,Q is an alkyl, alkenyl, alkinyl group, which may be interrupted by oxygen sulfur sulfonyl or sulfonyl, or a test 1,3-dioxolan-2-yl-alkyl, 1,3-dioxolan-4-alkyl, 2,2-dialkyl-1,3-dioxolan-4-ylalkyl, 1,3-dioxan-2-ylalkyl, 2-benzopyranylalkyl, alkoxycarbonyl alkenyloxycarbonyl or tetrahydrofurylalkyl, or the groupQ--X represents also a halogenoalkyl radical,n is 1, 2 or 3,Z is hydrogen, halogen, alkyl or dioxymethylene, alkoxy, alkenyloxy or alkinyloxy, A is a C.sub.1 -C.sub.8 -hydrocarbon radical which may be straight-chained, branched or cyclic and which is unsubstituted or substituted by alkoxy, alkylthio, cyano or halogen,R is halogenoalkyl or halogenoalkenyl,R.sub.1 is hydrogen, a C.sub.1 -C.sub.5 alkyl, C.sub.3 -C.sub.5 alkenyl or C.sub.3 -C.sub.

Abstract: A herbicidal composition which comprises as the active ingredients (a) 2-[7-fluoro-3,4-dihydro-3-oxo-4-(2-propynyl)-2H-1,4-benzoxazin-6-yl]-4,5,6 ,7-tetrahydro-1H-isoindole-1,3(2H)-dione and (b) N-(phosphonomethyl)glycine or its salt (glyphosate), and an inert carrier or diluent. The composition exerts a synergistic herbicidal activity.