The quality of hosts for a parasitoid wasp may be influenced by attributes such as host size or species, with high successful development usually coincident larger offspring. This is not always the case: Scelionid Trissolcus basalis, oviposition in eggs Brown Marmorated Stink Bug, Halyomorpha halys, rather than normal host, Southern Green Nezara viridula, leads to lower offspring survival, but ...

Whereas crude bovine thrombin activated single-chain urokinase-type plasminogen activator (scu-PA), otherwise called pro-urokinase (pro-UK). purified human thrombin converted pro-UK (scu-PA) to a two-chain form that had no amidolytic activity. The two chains (M 33.000 and 22.000) were disulfide linked and resistant to subsequent activation by plasmin. By contrast. thrombin did not mactivate tis...

The majority of rabbits receiving intradermal, intraperitoneal or intravenous injections of moccasin venom became refractory to the development of the Shwartzman phenomenon. An incubation period of about 14 days was required for their resistance to develop. The incidence of refractory animals was inversely proportional within limits to the amount of toxin given intravenously to elicit the Shwar...

Halyomorpha halys is an important invasive pest that causes severe damage to fruits and vegetables. Peppers are susceptible infestation by H. halys, resulting in yield losses. Plants respond the insect with a metabolic response. With this study, we attempted determine intensity of response infested peppers, how pungent non-pungent peppers react infestation, affects post-harvest quality both cul...

Abstract Here, we document the first record for Montana of Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), a major agricultural and nuisance pest in many parts world. The insect was found overwintering private residence January 2021 Billings (Yellowstone Co.). A preliminary survey sites from May to October confirmed presence H. within radius at least 11 km detection. Putatively adult bugs a...

The introduction of an exotic species may alter food webs within the ecosystem and significantly affect the biodiversity of indigenous species at different trophic levels. It has been postulated that recent introduction of the brown marmorated stinkbug (Halyomorpha halys (Stål)) represents an evolutionary trap for native parasitoids, as they accept H. halys egg masses as a host but produce no v...

BACKGROUND Studies consistently find that supportive neighbourhood built environments increase physical activity by encouraging walking and cycling. However, evidence on the cost-effectiveness of investing in built environment interventions as a means of promoting physical activity is lacking. In this study, we assess the cost-effectiveness of increasing sidewalk availability as one means of en...

Over-reliance on synthetic pesticides in insect pest control has caused widespread public and scientific concerns for human health and the environment, especially since many insect pests have already developed resistances to conventional pesticides and Bt products. For this reason, there is a considerable interest in development of alternative control methods for insect pest management. Based o...

With the introduction and establishment of exotic species, most ecosystems now contain both native and exotic plants and herbivores. Recent research identifies several factors that govern how specialist herbivores switch host plants upon introduction. Predicting the feeding ecology and impacts of introduced generalist species, however, remains difficult. Here, we examine how plant geographic or...