This work reports on the use of cultural practices that influence grasshoppers’ nymphal emergence. Grasshopper eggs were buried at depths of 2, 14, 18, 22, and 26 cm in laboratory arenas. Nymph eclosion ranged from 77.5 to 87.8%. However, nymph emergence, measured as the number of nymphs that reached the soil surface, was estimated at 70.9% when eggs were buried at 2cm, but was reduced to 2.5 %...

The distribution of vector meals in the host community is an important element of understanding and predicting vector-borne disease risk. Lizards (such as the western fence lizard; Sceloporus occidentalis) play a unique role in Lyme disease ecology in the far-western United States. Lizards rather than mammals serve as the blood meal hosts for a large fraction of larval and nymphal western black...

Forty-one methanol extracts of 28 indigenous medicinal plant species were tested for their insecticidal bioactivity against cotton whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), adults and second nymphal instars under controlled conditions. This study is within a bioprospection context, in the form of utilizing local plant species as an alternative in sustainable agriculture dev...

Risk of exposure to Borrelia burgdorferi sensu lato (s.l.) spirochetes, which include the causative agents of Lyme disease, is, in part, determined by the density of questing infected vector ticks. We sought to clarify the temporal patterns of nymphal activity, and the extent of variation in peak and cumulative densities of B. burgdorferi s.l.-infected Ixodes pacificus Cooley & Kohls nymphs, at...

The present study investigated the biology and morphometric analysis of rugose spiralling whitefly (RSW), Aleyrodicus rugioperculatus on coconut under mini net house condition at Department Agricultural Entomology, Tamil Nadu University-Coimbatore during 2019-2020. was studied by clip cage method morphometrics were done using Leica image analyser. Total lifecycle spiraling 56.23 ± 2.20 days. De...

Megacopta cribraria F. (Hemiptera: Plataspidae), the kudzu bug, is an invasive insect pest of U.S. soybean. At present, insecticide application is the primary and most effective control option for M. cribraria In this study, the potential effects of sublethal and low-lethal concentrations (LC10 and LC40) of three common insecticides on key biological traits and acetylcholinesterase (AChE) activ...

Descriptions of the last three nymphal instars of the water boatman Sigara (Aphelosigara) tucma Bachmann (Hemiptera: Heteroptera: Corixidae) are provided, for the first time, for specimens collected in northern Argentina; the egg is redescribed. Adults and nymphs were collected in the field. The eggs were obtained by dissection from females. The immature stages were fixed for microscopic examin...

understanding of parameters that influence parasitoids fitness is necessary for mass rearing and effective use of parasitoids. host quality is an intrinsic feature that is determined by quantitative and qualitative differences in hosts. these differences can change nutritional resources available and consequently affect life history traits of parasitoid. in this study, parasitoid wasps lysiphle...