Journal ArticleDOI
Benefits to aphids from feeding on galled and virus-infected leaves.
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It has been shown that robust green leaves which have ceased growth and not yet entered upon senescence are unsuitable, by comparison with growing or senescing leaves, for colonization by Aphis fabæ Scopoli and Myzus persicæ (Sulzer).Abstract:
IT has been shown that robust green leaves which have ceased growth and not yet entered upon senescence are unsuitable, by comparison with growing or senescing leaves, for colonization by Aphis fabae Scopoli and Myzus persicae (Sulzer)1–3. Abnormally extended growth or premature senescence-like changes, or both, are characteristic of both the ‘pseudo-galls’ (curling and pocketing of leaves) and the virus diseases which plants can develop as a result of aphid attack. Experiments were therefore undertaken to see whether such pathological changes in the plants might not be beneficial to the aphids initiating them.read more
Citations
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The abundance of invertebrate herbivores in relation to the availability of nitrogen in stressed food plants.
TL;DR: It has been postulated that when plants are stressed by certain changes in patterns of weather they become a better source of food for invertebrate herbivores because this stress causes an increase in the amount of nitrogen available in their tissues for young herbivore feeding on them.
Journal ArticleDOI
Behavioural aspects influencing plant virus transmission by homopteran insects.
Alberto Fereres,Aranzazu Moreno +1 more
TL;DR: This review considers how vector behaviour influences the transmission and spread of plant viruses depending on the type of virus-vector relationship and which are the most likely retention sites within the insect's body of cuticula-borne viruses.
Journal ArticleDOI
Plant viruses alter insect behavior to enhance their spread
TL;DR: It is shown that the aphid Rhopalosiphum padi, after acquiring Barley yellow dwarf virus during in vitro feeding, prefers noninfected wheat plants, while noninfective aphids also fed in vitro prefer BYDV-infected plants.
Journal ArticleDOI
Volatiles from potato plants infected with potato leafroll virus attract and arrest the virus vector, Myzus persicae (Homoptera: Aphididae)
TL;DR: It is shown that previously reported preferential colonization of potatoes infected by potato leafroll virus by alatae of Myzus persicae, the principal aphid vector ofPLRV, is influenced by volatile emissions from PLRV–infected plants.
Journal ArticleDOI
Plant penetration by feeding aphids (Hemiptera, Aphidoidea): a review
TL;DR: The factors responsible for determining the host-plants and feeding sites of aphids, and the various probing activities (the role of the labium, stylet insertion, surface saliva deposition, the behaviour of the aphid, virus transmission) are examined.
References
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Journal ArticleDOI
Host alternation in aphis fabae scop. i. feeding preferences and fecundity in relation to the age and kind of leaves
J. S. Kennedy,C. O. Booth +1 more
TL;DR: The feeding preferences and comparative fecundity of laboratory-bred, alienicolae alatae of Aphis fabae were investigated in small leaf cages on spindle and sugar beet leaves, representing a winter and a summer host respectively, both in pots in the greenhouse and while growing naturally outdoors, forming the basis of a dual discrimination theory of host selection.
Journal ArticleDOI
The distribution of aphid infestation in relation to leaf age
TL;DR: The degree of adaptation of a given aphid to a given plant may be gauged by the extent to which the aphid can colonize the plant's leaves not only when they are growing and senescing but also when they is mature and fully functional.
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