By David V. Alford
An entire realizing of the biology and existence histories of pest species is key for all these eager about crop creation and crop defense. this significant new identify presents complete assurance of significant insect and mite pest species, basically in Northern Europe. Textbook of Agricultural Entomology is commonly divided into elements. the 1st half covers the exterior and inner beneficial properties of the key insect and mite pest households, whereas the second one half offers certain descriptions of significant pest species together with info on existence heritage levels (vital info whilst contemplating keep watch over equipment) and the vegetation which those species assault.
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Extra info for A Textbook of Agricultural Entomology
Larvae very hairy (Fig. 65) and often called 'woolly bears'; mainly scavengers, several species causing damage to stored products. EXAMPLES: Anthrenus spp. (carpet beetles), Trogoderma granarium (khapra beetle). Fig. 65 Larva of a carpet beetle (= 'woolly bear'), Anthrenus verbasci - family Dermestidae (xf 0). Superfamily BOSTRICHOIDEA Adults with the pronotum extended forward as a hood over the head; most species are woodborers, with soft-bodied, scarabeiform larvae, but some are of significance as pests of stored products.
EXAMPLES: Cinara pilicornis (brown spruce aphid), Maculolachnus submacula (rose 18. Family DREPANOSIPHIDAE Aphids with the terminal process of the antennae of variable length; siphunculi usually stumpy or broadly conical but sometimes pore-like or long and swollen; cauda knob-like or rounded; subanal plate prominent, often divided into two lobes (Fig. 38); Rs vein of forewing present. EXAMPLES: Eucallipterus tiliae (lime leaf aphid), Phyllaphis fagi (beech aphid). 19. Family APHIDIDAE (aphids) (p.
Larvae with indistinct tarsi and just one tarsal claw. Superfamily HYDROPHILOIDEA A small group of mainly aquatic beetles. Antennae each terminating in a small, pubescent club (Fig. 58) and typically shorter than the often very long maxillary palps. Superfamily CARABOIDEA 1. Family CARABIDAE (ground beetles) (p. ) A large family of fast-moving, mainly nocturnal beetles with a characteristic body shape (Fig. 57), most ground beetles being readily recognized as such on sight; each elytron usually with nine longitudinal ridges, separated by distinct furrows or series of punctures; elytra sometimes fused to form a rigid body shield; exoskeleton usually black, but often with a metallic sheen.