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Identification of the Wheat Curl Mite as the Vector of Triticum mosaic virus.
This study was conducted to determine if the wheat curl mite (WCM, Aceria tosichella) and the bird cherry oat aphid (Rhopalosiphum padi) could transmit TriMV, and it was shown the WCM is the vector ofTriMV. Expand
Seasonal cycles of assortative mating and reproductive behaviour in polymorphic populations of Harmonia axyridis in China
Abstract 1. We observed native populations of Harmonia axyridis (Pallas) around Beijing, China, over 2 years and performed choice and no‐choice mating tests between melanic and succinic (non‐melanic)Expand
Indigenous Aphid Predators Show High Levels of Preadaptation to a Novel Prey, Melanaphis sacchari (Hemiptera: Aphididae)
All the predators studied are preadapted to utilize sugarcane aphid as prey and have excellent potential to provide sustainable biological control of this newly invasive pest. Expand
It is suggested that coccinellid species could play an important role as predators of the psyllid in Puerto Rico and contribute to its natural control. Expand
Sexual activity diminishes male virility in two Coccinella species: consequences for female fertility and progeny development
Seminal fluid proteins are known to have allohormonal properties and can stimulate female fecundity and fertility in a number of insects, making them strong candidates for depletion as a function of mating activity, but it is also possible that sperm limitation and/or reduced tactile stimulation of females by multiple-mated males may have contributed to some of the observed effects. Expand
Differential impacts of six insecticides on a mealybug and its coccinellid predator.
The results indicate that the three neurotoxic insecticides can potentially control F. dasylirii but are hazardous to its natural predator, and lufenuron and pymetrozine appear compatible with T. notata, although they appear less effective against the mealybug. Expand
Cryptic maternal effects in Hippodamia convergens vary with maternal age and body size
It is shown that maternal signals can change through adult life and alter the developmental programs of progeny, ostensibly to synchronize their life histories with predictable resource dynamics, thus maximizing maternal fitness, and that female body size, as determined by larval food supply, interacts with female age to influence progeny fitness. Expand
Sunflowers as a trap crop for reducing soybean losses to the stalk borer Dectes texanus (Coleoptera: Cerambycidae).
Results reveal that sunflowers can reduce D. texanus infestation in adjacent soybeans by acting as an 'ovipositional sink', and further research is warranted to determine the optimum crop area proportions and spatial configurations that will maximize the efficacy of a sunflower trap crop to reduce soybean losses due to D.texanus-induced lodging. Expand
The biology and behavior of the longhorned beetle, Dectes texanus on sunflower and soybean
Abstract The biology and behavior of the longhorned beetle Dectes texanus LeConte (Coleoptera: Cerambycidae) was studied on two host plants that suffer economic losses from this pest; sunflower,Expand
Melanism in a Chinese Population of Harmonia axyridis (Coleoptera: Coccinellidae): A Criterion for Male Investment with Pleiotropic Effects on Behavior and Fertility
Although female fecundity did not vary among phenotype combinations, egg fertility was lower for females mated to melanic males, suggesting a pleiotropic effect of melanism on male fertility in addition to its effects on male mating behavior. Expand