We demonstrated that Demodex canis was transferred to skin xenografts of a dog and a hamster onto severe combined immunodeficiency mice. After the transfer of mites, the number of eggs, larvae, nymphs and adult mites per gram of canine and hamster xenografts increased, whereas no live mites were detected on murine allograft. These results indicate that D. canis proliferates in hair follicles of...

The problem of insect metamorphosis has inspired naturalists for centuries. One question that often arises is why some insects, such as butterflies and bees, undergo a fairly radical metamorphosis while others, such as crickets and lice, do not. Even before the concept of homology emerged scientists speculated which stage found in more direct-developing insects would correspond with the pupal s...

Sulfuryl fluoride (SF) has been registered in many countries for stored product applications as an alternative to other fumigants, especially methyl bromide (MB). Research was conducted establish SF fumigation protocols the mortality of pests infesting post-harvest durable commodities. The efficacy against two major arthropod southern dry-cured hams, red-legged ham beetle, Necrobia rufipes, and...

The present report is on Psoroptic mange infestation in rabbits. Out of 126 rabbits in a farm 34 were infested. Observed clinical signs were alopecia, crusts formation, superficial and deep skin fissures and itching. Distribution of lesions was noticed around the base of ears, margins of the ears and face. Skin scrapings from infested rabbits were examined and eggs, larvae, nymphs and adult mit...

The Australian plague locust, Chortoicetes terminifera (Walker), is an important agricultural pest and oviposits into compacted soil across vast semi-arid and arid regions prone to irregular heavy summer rainfall. This study aimed to quantify the effects of flooding (control, 7, 14, 21, 28 and 35 days) at different temperatures (15, 20 and 25°C) and embryonic development stages (25 and 75%) on ...

Parental protection of eggs represents one of the most basic forms of parental care. Theory suggests that even such basic parental investment represents a trade-off between current offspring survival and future reproductive success. However, few studies have quantified the underlying costs and benefits of parental care for marked individuals across an entire lifetime. I marked and followed 370 ...

Diaphorencyrtus aligarhensis (Hymenoptera: Encyrtidae) was first released in California for biological control of Diaphorina citri (Hemiptera: Liviidae) December 2014. The establishment and parasitism rates D. aligarhensis, along with those another introduced species, Tamarixia radiata Eulophidae), 2011, were assessed at 15 release 24 no-release sites over the period 2016–2018. Study citrus tre...