Does Phenoloxidase Contributed to the Resistance? Selection with Butane-Fipronil Enhanced its Activities from Diamondback Moths

Biochemical and Physiologial Characteristics of Insecticide Resistance in Diamondback Moth

A pyrethroid-resistant strain of the diamondback moth, Plutella xylostella (L.), originally collected in Thailand showed cross-resistance to all the pyrethroids tested. Upon further selection with fenvalerate in the laboratory, the strain exhibited an extremely high LD50 value, 41 μg/larva, for fenvalerate. In genetic studies of the resistance, the F1 progeny showed recessive gene(s), while the...

Occurrence of Resistance to Bacillus thuringiensis in Diamondback Moth, and Results of Trials for Integrated Control in a Watercress Greenhouse

High levels of resistance to Bacillus thuringiensis Berliner in diamondback moth Plutella xylostella (L.), (LC50 more than 280 ppm) was observed in a watercress greenhouse in Osaka Prefecture in 1988. Populations of egg, larva, pupa and adult of diamondback moth were monitored weekly throughout 1988. Population of the larva fluctuated from nearly 0 to 1,300,000. Three control methods were attem...

Costs of resistance in a mustard plant (Arabidopsis thaliana) associated with two specialist insects| Crucifer flea beetles (Phyllotreta cruciferae) and diamondback moths (Plutella xylostella)

Laboratory performance of 0.05% fipronil and 2.15% imidaclporid gel

Introduction: Application of insecticidal baits is one of the most common and effective strategies for controlling German cockroach, (Blattella germanica L.) The current study was designed to investigate the susceptibility level of German cockroach to fipronil and imidacloprid gel baits in laboratory situation and to recommend its usage in Iran. Methods: This experimental study was conducted o...

Spread and global population structure of the diamondback moth Plutella xylostella (Lepidoptera: Plutellidae) and its larval parasitoids Diadegma semiclausum and Diadegma fenestrale (Hymenoptera: Ichneumonidae) based on mtDNA.

The diamondback moth (DBM) (Plutella xylostella) is one of the main pests of brassicaceous crops worldwide and shows resistance against a wide range of synthetic insecticides incurring millions of dollars in control costs every year. The DBM is a prime example of the introduction of an exotic species as a consequence of globalization. In this study we analyzed the genetic population structure o...