Academic Journals Database
Disseminating quality controlled scientific knowledge

Biology of Macrolophus caliginosus (Heteroptera: Miridae) Predator of Trialeurodes vaporariorum (Homoptera: Aleyrodidae)

Author(s): Mohd Rasdi, Z. | Fauziah, I. | Wan Mohamad, W.A.K | Che Salmah, M.R. | Kamaruzaman, J.

Journal: International Journal of Biology
ISSN 1916-9671

Volume: 1;
Issue: 2;
Date: 2009;
Original page

Macrolophus caliginosus Wagner (Heteroptera: Miridae) is a highly polyphagous predatory bug, which has proven tobe effective in controlling many insect pests of greenhouse vegetables (eggplant, tomato, and cucumber) especiallywhiteflies, aphids, and thrip. It is mainly used as a biological control auxiliary against T. vaporariorum Westwood(Homoptera: Aleyrodidae). The greenhouse whitefly, Trialeurodes vaporariorum is particularly harmful to tomatoplants grown under the greenhouse. It has become prevalent whenever crops are frequently sprayed with insecticides.Biological control is becoming important for controlling this insect pest. A mirid bug management programme has beendeveloped for an Integrated Pest Management (IPM) in tomato. The objective of the programme was to keep thepredator population densities high enough in order to maintain T. vaporariorum and other insect pest populations belowthe economic threshold. In this study, it was very important to determine the biology of predator in term of its life cycle,behaviour at different stages, fecundity, longevity and searching abilities, in order to provide detail data for formulatingthe means of control against whitefly. Results of this study indicated that Macrolophus caliginosus adults fed onwhitefly larvae of all stages from the first larval stage to the pupal stage. The predator consumed the preys at almostsimilar daily rates (average of 5.94 per day). The study implies that M. caliginosus, with its life cycle, predation,longevity and fecundity and host preference, is a beneficial insect to combat against whitefly.
Save time & money - Smart Internet Solutions     

Tango Rapperswil
Tango Rapperswil