144 research outputs found
Parasitismo de Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae) em diferentes hospedeiros e cores de cartelas
Evaluación del consumo de semillas de malezas por Notiobia (Anisotarsus) cupripennis (Germ.) (Coleoptera: Carabidae)
Effect of the aqueous extracts of the seeds of Talisia esculenta and Sapindus saponaria on fall armyworm
The selection of nutritionally balanced foods by Locusts migratoria: the interaction between food nutrients and added flavours
Quantifying the symbiont contribution to essential amino acids in aphids : the importance of tryptophan for Uroleucon ambrosiae
A complete amino acid budget was constructed using the aphid Uroleucon ambrosiae (Strecker), feeding on a suboptimal host, Tithonia fruticosa. The availability of amino acids was estimated from phloem analyses and phloem intake rates at each stage of development. Requirements for amino acids were estimated from gravimetric studies and from analyses of body amino acids. Because the budget was found to be well balanced, estimates of specific needs and shortfalls of essential amino acids were calculated, thus quantifying the role of symbiotic bacteria in fulfilling needs for these amino acids. The most dramatic shortfall was for tryptophan, consistent with the amplification of relevant genes in the symbiont
The effects of simultaneous variation in protein, digestible carbohydrate and tannic acid on the feeding behaviour of larval Locusta migratoria (L.) and Schistocerca gregaria (Forskal). I. Short-term studies
The role of volumetric feedback from the hindgut in the regulation of meal size in fifth-instar Locusta migratoria nymphs
Changes in learning ability and mechanism during development of grasshopper nymphs, Melanoplus bivittatus
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