Abstract: A nursery box comprising a growth substrate for rice, rice seeds and an aqueous formulation for treating said rice seeds to protect rice plants against insects for a prolonged period of time.

Abstract: A method for controlling acridians comprising treating strips of land separated by untreated strips of land with an active ingredient having the formula: ##STR1## wherein n is 0, 1 or 2; X is N or CR.sup.5 ; R.sup.1 is C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 halolkyl; R.sup.2 and R.sup.3, which are identical or different, are H or C.sub.1 -C.sub.4 alkyl, optionally substituted with halogen, hydroxy, alkoxy, imino or alkylimino; R.sup.4 is halogen, halomethyl, halomethoxy or SF.sub.5 ; R.sup.5 and R.sup.6, which are identical or different, are H or halogen, at least one of them being other than H when X is CR.sup.5 ; and R.sup.7 is cyano or halogen or, when R.sup.1 is C.sub.1 -C.sub.4 haloalkyl, R.sup.7 is H, halogen, alkyl, haloalkyl or cyano.

Abstract: Process for treating rice plants or rice propagation material against insects with a view to obtaining sustained and effective protection of the plant after the sowing period, characterized in that there is applied to the said plants or to their propagation material an effective amount of an insecticide other than an organophosphorus insecticide having systemic properties which is capable of having a long-lasting effect, that is to say even persisting on the growing plant after germination.This process is used with a pyrazole insecticide.The invention also applies to the seeds thus treated and to the nursery boxes containing them.

Abstract: A method for controlling acridians comprising treating strips of land separated by untreated strips of land with an active ingredient having the formula: ##STR1## wherein n is 0, 1 or 2; X is N or CR.sup.5 ; R.sup.1 is C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 haloalkyl; R.sup.2 and R.sup.3, which are identifical or different, are H or C.sub.1 -C.sub.4 alkyl, optionally substituted with halogen, hydroxy, alkoxy, imino or alkylimino; R.sup.4 is halogen, halomethyl, halomethoxy or SF.sub.5 ; R.sup.5 and R.sup.6, which are identifical or different, are H or halogen, at least one of them being other than H when X is CR.sup.5 ; and R.sup.7 is cyano or halogen or, when R.sup.1 is C.sub.1 -C.sub.4 haloalkyl, R.sup.7 is H, halogen, alkyl, haloalkyl or cyano.

Abstract: Process for treating rice plants or rice propagation material against insects with a view to obtaining sustained and effective protection of the plant after the sowing period, characterised in that there is applied to the said plants or to their propagation material an effective amount of an insecticide other than an organophosphorus insecticide having systemic properties which is capable of having a long-lasting effect, that is to say even persisting on the growing plant after germination. This process is used with a pyrazole insecticide. The invention also applies to the seeds thus treated and to the nursery boxes containing them.