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Melolontha melolontha (white grub cockchafer)
M. melolontha larvae can be one of the most important pests of tree nurseries and young plantations, whilst in outbreak years, adults can feed...
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Meromyza saltatrix (wheat stem maggot)
Lei et al. (1981) reported yield losses of up to 83% of spring wheat in...
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Metopolophium dirhodum (rose-grass aphid)
M. dirhodum is one of the most economically significant insect pests of wheat in Washington, USA (Pike and Tanigoshi, 1996) and was described by...
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Mussidia nigrivenella (cob borer)
In Nigeria, M. nigrivenella occurred on maize only in the late season (Oigiangbe et al., 1997). In Côte d'Ivoire the densities of the pest may be...
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Myzus cerasi (black cherry aphid)
Infestations of M. cerasi on cherry in spring can cause severe economic damage. Most damage is due to direct feeding, which results in leaf curling...
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Oligonychus coffeae (tea red spider mite)
O. coffeae is considered to be the most serious pest of tea (Jeppson et al., 1975). It is also a pest of jute in Bangladesh and India and of cotton...
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Orosius orientalis (sesame jassid)
O. orientalis is a serious pest of sesame in India and Myanmar especially through the transmission of sesame phyllody. Legumes are also affected in...
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Orthezia insignis (greenhouse orthezia)
O. insignis is rarely damaging in the Caribbean region, where it originated; in this region it occurs mainly on wild hosts. Bartlett (1978) remarks...
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Orthosia cerasi (common quaker)
The main economic impact of O. cerasi is in apple orchards. In Germany, more than 20 to 30% of harvested apples were damaged by O. cerasi larvae...
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Ostrinia furnacalis (Asian corn borer)
O. furnacalis is mainly a pest of maize and sweetcorn. Reduction of maize yield was assessed in Taiwan by Hsu et al. (1988). Each larva caused 1.7%...
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