Resistance of alfalfa to spotted alfalfa aphid in relation to environmental factors

McMurtry, J. A.

doi:10.3733/hilg.v32n12p501

Cited by 22 publications

(8 citation statements)

References 28 publications

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“…1983, 1986a, 1b; Behle & Michels, 1988; Fereres et al . 1988; Pons & Tatchell, 1995), together with an increase in the proportion of aphids that are winged (alatae) and therefore capable of long distance migration (Stadler, 1990; Baugh & Phillips, 1991; Pons & Tatchell, 1995), although in some cases little effect on the aphids was observed (McMurtry, 1962; Lorenz De Vries & Manglitz, 1982; Salas & Corcuera, 1991). A few contradictory studies have reported increased abundance, fecundity, or survival of aphids on drought‐stressed plants (Wearing, 1967, 1972; Miles et al .…”

Section: Introductionmentioning

confidence: 99%

The effect of plant drought‐stress on populations of the pea aphid Acyrthosiphon pisum

Mcvean

Dixon

2001

Ecological Entomology

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Section: Introductionmentioning

confidence: 99%

The effect of plant drought‐stress on populations of the pea aphid Acyrthosiphon pisum

Mcvean

Dixon

2001

Ecological Entomology

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“…In the case of aphids (Aphididae), for example, drought stress enhances insect performance in some cases, increasing reproduction rate (Wearing, 1967), or speeding nymphal development (Miles et al, 1982), or promoting outbreaks in the field (Li et al, 2008). Nevertheless, in some other cases, all relating to aphids, drought stress has a detrimental (Miles et al, 1982;Sumner et al, 1986;Pons & Tatchell, 1995;McVean & Dixon, 2001) or little effect (McMurtry, 1962;Salas & Corcuera, 1991). Huberty & Denno (2004), reviewing the literature on plant water stress and its consequences for herbivorous insects, proposed the "pulsed stress hypothesis", which suggests that phloem-feeding insects, like aphids, are expected to respond positively to intermittently stressed plants, where the recovery of turgor allows sap-feeders to benefit from increases in plant nitrogen induced by the stress, but are expected to perform poorly on continuously stressed plants.…”

Section: Introductionmentioning

confidence: 99%

Relation between plant water status and Macrosiphum euphorbiae (Hemiptera: Aphididae) population dynamics on three cultivars of tomato

Rivelli¹,

Trotta²,

Toma³

et al. 2013

Eur. J. Entomol.

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Abstract. Deficit irrigation scheduling is used to increase the efficiency with which water is used in many crops including tomato, however a water deficit is predicted to favour phloem feeding insects. We tested if and how different cultivars of tomato grown under water deficit conditions affect the population growth of the aphid Macrosiphum euphorbiae. Three tomato cultivars (Scintilla, Beefmaster and Rio Grande) were used in the experiments. The results for three watering regimes were compared with those of a control, which was well watered every three days: stressed plants received one third of the water supplied to the control over each three-day interval (experiment 1); stressed plants received a gradually decreasing amount of water (100% at the first watering and then 80%, 60%, 50%, 40% and 20%) every three days (experiment 2); stressed plants received the same amount of water as the control but at longer intervals, that is when evident signs of wilting appeared (experiment 3). The results showed that water stress either enhanced, had an adverse effect or had no effect on aphid population growth, depending on the cultivar and watering regime. No difference was recorded in the population dynamics of M. euphorbiae feeding on Beefmaster tomato plants subjected to different levels of water stress. In the case of the cultivar Scintilla, live aphids were less abundant on stressed plants than on well watered ones in experiment 1 and 3 but not in experiment 2. The highest variability in aphid population dynamics on the plants grown under the different water stress protocols was recorded on the cultivar Rio Grande. In experiment 1, the initial peak in aphid numbers was higher on the water stressed plants than on the control and then decreased to lower numbers than on the control. In experiment 2, there were no differences in the numbers of aphids infesting stressed and control plants. In experiment 3, there were fewer aphids on stressed than on control plants after six days, as in experiment 1, but there was no initial peak in aphid numbers.

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“…While there are no reports of the effects of plant water stress on fecundity of BPH, some data are available for aphids, which also feed on phloem sap. McMurtry (1962) found that water stress in alfalfa had no effect on reproduction of T. maculata. In other cases water stress in the host plant 29 interfered with aphid reproduction (Kennedy etal., 1958;Kennedy & Booth, 1959).…”

Section: Discussionmentioning

confidence: 92%

“…Standing water in rice fields promotes the growth and development of BPH, while timely draining of rice fields or withholding irrigation water controls BPH outbreaks (Oka, 1979). These accounts refer to general trends in water relations of BPH in the field; although studies have been made on the effects of water stress on phytophagous insects, with the emphasis on aphids (Kennedy et al, 1958;McMurtry, 1962;Wearing, 1972) there have been no reports of the responses of insects to the combined effects of water stress and cultivar. This paper describes the response of BPH to waterstressed rice plants of six cultivars grown in the glasshouse.…”

Section: Introductionmentioning

confidence: 99%

Effect of plant water stress on honeydew production, weight gain and oviposition of brown planthopper Nilaparvata lugens on rice cultivars

Baqui

Kershaw

1993

Entomologia Exp Applicata

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Glasshouse studies were made on honeydew production, adult and nymphal body weight gain, fecundity and size of egg groups of brown planthopper Nilaparvata lugens (Stål) (Homoptera: Delphacidae) (BPH) on CVS TN1, ASD7, Babawee, Mudgo, Rathu‐Heenati and Ptb33 rice plants with watering regimes of 10 ml, 20 ml, 30 ml and excess water daily. Honeydew production, weight gain, fecundity and size of egg groups were greatest on TN1, followed by ASD7. BPH did less well on Babawee, Mudgo and Rathu‐Heenati and they did worst on Ptb33. Watering regimes greatly affected performance, with significantly less honeydew, less weight gain, lower fecundity and smaller egg groups on plants with 10 ml water daily than on plants with excess water. The 20 ml and 30 ml watering regimes also significantly reduced honeydew production on TN1 and ASD7 and fecundity and weight gain of adults and nymphs on Mudgo. On Babawee adults gained most weight on the 20 ml and 30 ml treatments, and nymphs gained most weight on the 30 ml treatment. BPH laid most eggs on TN1, ASD7, Babawee and Rathu‐Heenati when plants were given 30 ml water daily.

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Resistance of alfalfa to spotted alfalfa aphid in relation to environmental factors

Cited by 22 publications

References 28 publications

The effect of plant drought‐stress on populations of the pea aphid Acyrthosiphon pisum

The effect of plant drought‐stress on populations of the pea aphid Acyrthosiphon pisum

Relation between plant water status and Macrosiphum euphorbiae (Hemiptera: Aphididae) population dynamics on three cultivars of tomato

Effect of plant water stress on honeydew production, weight gain and oviposition of brown planthopper Nilaparvata lugens on rice cultivars

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