Biochemical effects of two kinds of mineral oils and an IGR on adult female mealybug Ferrisia virgata (Cockerell)

Abstract

A study was conducted to offer a preliminary understanding of the role played by intensively used field controlling agents, two mineral oils, namely Alboleum and Super Misrona oils as well as an IGR, Admiral (pyriproxyfen) with the recommended doses upon adult female mealybug Ferrisia virgata (Pseudococcidae: Homoptera) as an arbitrary model for mealybugs. The present work points out to the importance of the delayed effect of these different compounds. The highest increase in the total protein content was achieved by Admiral reached 29.2% while Super Misrona caused the greatest enhancement in the total carbohydrates concentration (72.93%). On the other hand, Alboleum caused a highly significant inhibition in the activity of glutamic oxaloacetic transaminases (GOT) and glutamic pyruvic transaminases (GPT) reached 82.03 and 22.10 %, respectively. These biochemical changes were intensively discussed. Among most of the tested biochemical parameters, Admiral showed the strongest delayed effect.

A comparative toxic effect of Cedrus deodara oil on larval protein contents and its behavioral effect on larvae of mealworm beetle (Tenebrio molitor) (Coleoptera: Tenebrionidae)

“…In the present investigation, Imidacloprid was found more effective followed by Carbosulfan and deodar oil. Ezz and Fahmy (2009) used mineral oil i.e. Alboleum as well as an IGR, Admiral (pyriproxyfen) on adult female mealybug Ferrisia virgata (Cockerel) and determined that total protein was enhanced by Admiral up to 29.2%.…”

Comparative Effects of Certain Igrs on the Carbohydrates of Hemolymph and Fat Body of the Desert Locust, Schistocerca Gregaria (Orthoptera: Acrididae)

“…However, elevating or reducing effects of some IGRs on the carbohydrate content of adults belonging to various insects species were reported, e.g., IGR-increased carbohydrate contents in adults of Chrysocoris stolli Wolf (Hemiptera: Pentatomidae) (Saha et al 1986) and S. littoralis (Abdel-Hafez et al 1988). In addition, Ezz & Fahmy (2009) found increased carbohydrate content of the adult striped mealybug, Ferrisia virgata (Cockerell) (Hemiptera: Pseudococcidae) at d 4 and significantly decreased carbohydrate content 10 d post-treatment. The reducing or inducing effects of pyriproxyfen, tebufenozide or lufenuron on the carbohydrate content of adult S. gregaria, in the present study, may be due to the extended action of each (Anwar & Abdel-Mageed, 2005).…”