60. Each of these pests represents a unique feeding niche:A. craccivorainhabit the external surfaces of plants and use their piercing-sucking mouthparts to feed on phloem;L. trifoliilarvae live within the leaf tissues and feed internally; andS. littoralislarvae inhabit on the external surfaces of ...
Field experiments indicated that predators are an important source of mortality for tortoise beetle larvae in natural settings, and high larval mortality is associated with elevated densities of predators with piercing/sucking mouthparts, such as heteropterans. Thus, shields provide some but not ...
Chemosensory genes are involved in many recognition processes in insects, among which host-plant detection and sexual communication19,20. Gustatory receptors (GRs) are expressed in taste sensilla on tarsi, ovipositors and mouthparts where they probably detect non-volatile molecules (e.g. sugars and ...
Aphids, which are different from chewing insects, directly obtain nutrition and sap from the phloem and xylem via an intercellular pathway using their stylets, which are specialized mouthparts that cannot induce significant damage to plant tissues [15,16]. The feeding behavior of hemipterans is not...
insects Article First Case of Dual Size Asymmetry in an Identical Arthropod Organ: Different Asymmetries of the Combative (Sexual) and Cutting (Non-Sexual) Parts of Mandibles in the Horned Stored-Product Beetle Gnatocerus cornutus (Fabricius, 1798) Tomas Vendl * , Vaclav Stejskal and Radek ...
The common cutworm, Spodoptera litura, is a pest with chewing mouthparts that cause serious damage to soybeans in tropical Asia, as well as other economically important crops, such as tobacco, sugar beets and cotton [1,2]. It is widely distributed, causing intermittent disasters to crops and...
Mouthparts The mouthparts of RPW have a brownish-black colour. They are located at the rostrum’s apex, and the mandible is about two-thirds the width of the rostrum at the base. It is anteriorly bilobed, and the teeth are deeply divided. In general, mandibles, maxillae and submentum...
The thripsMegalurothrips usitatusis an omnivorous pest that harms plants by feeding on the sap of young plants with their unique file-and-sucking mouthparts. Currently, these thrips have been reported to feed on 28 species of host plants, 16 of which are legumes [1]. In Asia,M. usitatusis...