Insecticidal and developmental inhibitory properties of monoterpenes on Culex pipiens L. (Diptera: Culicidae)

Behavioural and toxicological responses of Blattella germanica (Dictyoptera: Blattellidae) to monoterpenes

“…This feature is favourable for their application as fumigants. Different monoterpenes are effective fumigants against stored product pests ( Lee et al, 2003;Rajendran & Sriranjini, 2008), mosquitoes (Lucía et al, 2007;Zahran & Abdelgaleil, 2011), German cockroaches (Phillips & Appel, 2010;Alzogaray et al, 2011); houseflies (Tarelli et al, 2009), blood-sucking bugs (Sfara et al, 2009) and human lice (Toloza et al, 2006). Sublethal effects produced by monoterpenes include prevention of either feeding or oviposition (Petrakis et al, 2005;, weight loss (Karr et al, 1990), inhibition of development (Hummelbrunner & Isman, 2001;Zahran & Abdelgaleil, 2011) and repellency (Cornelius et al, 1997;Choi et al, 2002;Chen & Viljoen, 2010;Alzogaray et al, 2011).…”

Larvicidal, pupicidal and insecticidal activities of <i>Cosmos bipinnatus</i>, <i>Foeniculum vulgare</i> and <i>Tagetes minuta</i> against <i>Culex quinquefasciatus</i> mosquitoes

“…C. bipinnatus and T. minuta ethanol leaf extracts contained terpenoids, flavonoids, saponins, steroids and tannins that play a role in plant defence against insect pests, and might have been responsible for larval and pupa deaths. Ethanol extracts of Citrus sinensis have displayed both larvicidal and pupicidal activities against Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus mosquitoes [20], and similar bioactivities were observed for F. vulgare, C. bipinnatus and Tagetes minuta ethanol extracts in this study against larva and pupa of C. quinquefasciatus mosquitoes. F. vulgare seed essential oil extract was reported for larvicidal activity on both 2nd and 4th larval instar of Culex pipiens [21], and the non-polar compounds present in the hexane extract can similarly act on larvae of C. quinquefasciatus mosquitoes.…”

Antitermitic activity of plant essential oils and their major constituentsagainst termite Heterotermes sulcatus (Isoptera: Rhinotermitidae)

“…Many phytochemical components are known by their antitermitic, antifeedant (Cärdenas-Marei et al, 2012), or repellent activities against a number of insect pests (Abdelgaleil, 2010;Zahran and Abdelgaleil, 2011). In the present study, all 6 essential oils tested showed antitermitic activity against H. sulcatus.…”