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Sunflower ( Helianthus annuus  L.) is an important oilseed crop. Several pest are known to attack sunflower crop. Sunflower cultivation in Marathwada region (M.S., India) has recently been threatened by a new pest, the stem borer  Nupserha  sp. near  vexator  (Pascoe). The stem borer appeared on sunflowers at Latur (M.S.) for the first time in India in 1993. Severe incidence of the stem borer was recorded in Marathwada region since 1998 which led to poor grain filling and ultimately yield loss to the extent of 30%. This situation led prompted us to test several conventional insecticides with the objective of finding a chemical that effectively controls the stem borer. A field study was carried out at Oilseeds Research Station, Latur (M.S.), during  Kharif  2004-06. Six conventional insecticides were tested along with the untreated control. Application of quinalphos was found to be most effective and economic in controlling the stem borer, followed by chlorpyriphos and endosulfan.

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CONTROL OF STEMBORER [Nupserha sp. near vexator (Pascoe)], A NEW PEST OF SUNFLOWER (Helianthus annuus L.), BY CONVENTIONAL INSECTICIDES / CONTROL DEL BARRENADOR DEL TALLO [(Nupserha sp. near vexator (Pascoe)], UNA NUEVA PESTE DEL GIRASOL (Helianthus annuus L.), A TRAVÉS DE INSECTICIDAS CONVENCIONALES / TRAITEMENT DE L’INSECTE Nupserha sp. near vexator (Pascoe), NOUVEL INSECTE NUISIBLE AU TOURNESOL (Helianthus annuus L.) aU MOYEN D’INSECTICIDES CONVENTIONNELS