The Plutella xylostella (L.) (Lepidoptera: Plutellidae) is a worldwide pest of Brassicaceae. Resistance has evolved against various insecticides including chlorfenapyr one of the most recently registered molecules to control this pest. The failure of chlorfenapyr to control this pest could be related to resistance in P. xylostella in the state of Pernambuco (Brazil), but there is currently no i...

BACKGROUND Although decoding the molecular mechanisms underlying insecticide resistance has often proven difficult, recent progress revealed that specific mutations in ryanodine receptor (RyR) of diamondback moth, Plutella xylostella, can confer to diamide insecticides. The extent which RyR contribute phenotype, associated genetic traits and fitness costs remain limited. RESULTS Three field-evo...

The glossy cauliflower PI 234599 has been used in breeding programs as a source of resistance to diamondback moth, Plutella xylostella (L.), and other lepidopterous larvae, but the relationship between insect resistance and glossiness has not been clear. One way to clarify this relationship is to find glossy lines carrying different genes for glossiness and test their resistance to insects. In ...

Features of pesticide synergism and acetylcholinesterase (AChE) inhibition (in vitro) were studied using a selected range of organotin compounds against the early 4th instar larvae of a highly resistant strain of the diamondback moth (DBM), Plutella xylostella, a major universal pest of cruciferous vegetables.Fourteen triorganotin compounds were evaluated for their ability to enhance the toxici...

Studies were carried out during 2015 and 2016 at Nauni, Solan, Himachal Pradesh to determine the genetic variability of Plutella xylostella (Lepidoptera: Yponomeutidae) in Cauliflower. The diamondback moth population collected from 4 locatitons viz. three from Himachal Pradesh and one from Punjab revealed significant variability existing among them. The life table analysis revealed that the fem...

Tanaman sawi merupakan salah satu komoditas sayuran yang cocok dibudidayakan pada iklim tropis khususnya di Indonesia. Namun saat budidaya, rentan terkena serangan hama ulat daun Plutella xylostella L. (Lepidoptera: Plutellidae). Penelitian ini bertujuan untuk mengetahui efektifitas ekstrak bawang putih dan sirsak terhadap tingkat mortalitas palatabilitas larva P. tanaman sawi. dilaksanakan bul...

The feeding activity of Plutella xylostella in brassica crops can lead to large losses; thus, pesticides that prevent during the larval stage or metamorphosis this insect be used for its control. In study, effects two types aqueous extracts Tradescantia pallida on different life P. cycle were tested; neither extracts, which obtained by infusion and maceration, had been tested against xylostella...

Selection with Bacillus thuringiensis subsp. kurstaki, which contains CryIA and CryII toxins, caused a >200-fold cross-resistance to CryIF toxin from B. thuringiensis subsp. aizawai in the diamondback moth, Plutella xylostella. CryIE was not toxic, but CryIB was highly toxic to both selected and unselected larvae. The results show that extremely high levels of cross-resistance can be conferred ...

The accurate measurement of parasitoid impact on diamondback moth, Plutella xylostella (L.) populations is important to both the evaluation of exotic parasitoids for introduction, and to the integration of parasitoids with other cropping practices, particularly pesticides. Parasitoid impact is usually measured by samples for percent parasitism. Problems with the accuracy of this approach, and i...

Diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), is the most injurious insect pest of brassica crops throughout the world. In many countries it has developed resistance to almost every synthetic insecticide used against it including Bt formulations. In addition to resistance, the destruction of its natural enemies through indiscriminate use of broadspectrum insecticides is...