Influence of the surrounding landscape on the colonization rate of cereal aphids and phytovirus transmission in autumn

Gilabert, Aude; Gauffre, Bertrand; Parisey, Nicolas; Gallic, Jean Francois Le; Lhomme, Patrick; Bretagnolle, Vincent; Dedryver, C. A.; Baudry, Jacques; Plantegenest, Manuel

doi:10.1007/s10340-016-0790-3

Cited by 19 publications

(22 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, the presence of winter cereal surfaces could lead to increased aphid abundances on maize because of a possible concentration effect (Root 1973) in early seasons at small landscape scales. This trend was also reported by Gilabert et al (2017), who showed that aphid populations increase in homogeneous landscapes dominated by cereals. Although the effect of non-crop habitats on the abundance of herbivorous insects has been found to be inconsistent (Chaplin-Kramer et al 2011), the proportion of non-crop habitats had a positive effect in this study on the early-season aphid abundance at the three scales.…”

Section: Effects Of Landscape and Field Variables On The Vectors Of Mdmv And Scmvsupporting

confidence: 84%

Early planting, management of edges and non-crop habitats reduce potyvirus infection in maize

Clemente-Orta

Albajes

Achón

2020

Agron. Sustain. Dev.

View full text Add to dashboard Cite

Viruses are a limiting factor in maize production areas around the world. The knowledge of the interactions between agroecosystems and the virus-vector-host system is limited, but a landscape-scale approach could help fill this gap. In this study, we show how the use of multiple spatial scales, i.e. 200, 500 and 1000 m, is a novel methodology for explaining the incidence of two closely related potyviruses: maize dwarf mosaic virus and sugarcane mosaic virus. To determine the factors involved in virus incidence, we recorded the proportion of surrounding crops and non-crop habitats at the landscape scale and, at the field scale, we recorded the planting date, the maize field area, the crop rotation and the weed diversity in the edges. In addition, we estimated the numbers of aphids with sticky yellow traps. Virus incidence in maize and in alternative grass hosts was determined by DAS-ELISA. Generalised linear mixed models were fitted using the multimodel inference method. The results showed that the most predictive model for the incidence of both potyviruses was at a scale of 200 m, but for the aphid abundance, it was at a scale of 500 m. Maize dwarf mosaic virus incidence was most affected by field management, and sugarcane mosaic virus by landscape variables. The planting date and the weed diversity in the edges were the field variables with the highest positive effects on both potyviruses. Moreover, both viruses were positively related to the abundance of aphids, and maize dwarf mosaic virus was only related to the cover of Johnson grass in the edges. Non-crop habitats had negative effects on potyvirus incidence at all spatial scales, showing that biodiversity in the landscape decreases the incidence of viruses. Here, we show that the early planting, the management of edges and the presence of non-crop habitats are key factors.

show abstract

Section: Effects Of Landscape and Field Variables On The Vectors Of Mdmv And Scmvsupporting

confidence: 84%

Early planting, management of edges and non-crop habitats reduce potyvirus infection in maize

Clemente-Orta

Albajes

Achón

2020

Agron. Sustain. Dev.

View full text Add to dashboard Cite

show abstract

“…One of the factors that influences aphid levels is landscape composition with more aphids occurring where there is uncropped land such as grassland, moorland, wasteland, while virus levels were lower where arable land dominates 14 . In contrast, a recent French study found that colonization was reduced when grassland cover in the landscape was high and increased when there was more maize in the surrounding 1 km radius circle 15 . Climate warming may lead to maize being grown further north across Europe.…”

Section: Introductionmentioning

confidence: 82%

Field specific monitoring of cereal yellow dwarf virus aphid vectors and factors influencing their immigration within fields

Holland

McHugh

Salinari

2021

Pest Management Science

View full text Add to dashboard Cite

BACKGROUND Neonicotinoid insecticide seed treatments were withdrawn from use on cereal crops in the European Union (EU) in 2018 exposing the crops to yellow dwarf viruses transmitted by cereal aphids. To reduce prophylactic pyrethroid sprays there is a need for easier, field‐specific monitoring techniques given that pest incidence is spatially and temporally highly sporadic. A field‐specific monitoring method based on the use of yellow sticky traps mounted horizontally just above the crop was developed and evaluated to determine: (i) predictive capabilities of the sticky trap system, (ii) practicalities of use by farmers and agronomists, and (iii) whether landscape composition, boundary type and type of tillage affect immigration of aphid vectors. RESULTS Yellow sticky traps effectively sampled winged cereal aphids and identified spatial differences in immigration patterns within‐ and between fields. Farmers and agronomist's aphid identification skills need improving, although they could detect aphid trends with minimal training. At least three times more cereal aphids were captured in crop headlands, especially next to taller field boundaries indicating that wind currents determined aphid immigration patterns within fields. Considerable between field aphid immigration was detected (24% of fields had no aphid immigration) even on the same farm. Levels of immigrating grain aphids were positively related to the proportion of grassland in the landscape. Tillage type had no impact on levels of immigrating aphids. CONCLUSION Field‐based monitoring and different management of headland areas could be used to reduce insecticide usage when controlling of cereal/barley yellow dwarf virus.

show abstract

“…) and sentinel seedlings (Gilabert et al . ) may be used to monitor population movements. To manually inspect grasses for D. noxia colonies, the base of leaves, particularly where they begin to wrap around the stem, should be checked, and flag leaves should be unwrapped from around emerging grass heads (particularly in the case of H. murinum , a highly preferred weed host).…”

Section: Managementmentioning

confidence: 99%

Biology, ecology and management of Diuraphis noxia (Hemiptera: Aphididae) in Australia

et al. 2020

View full text Add to dashboard Cite

The Russian wheat aphid, Diuraphis noxia (Mordvilko ex Kurdjumov), is one of the world's most economically important pests of grain crops and has been recorded from at least 140 grass species within Poaceae. It has rapidly dispersed from its native origin of Central Asia into most major grain-producing regions of the world including Africa, Asia, Europe, the Middle East, North America and South America. Diuraphis noxia was first found in Australia in a wheat crop in the mid-north of South Australia in May 2016. Since then, D. noxia has been recorded throughout grain-growing regions of South Australia, Victoria, New South Wales and Tasmania. The distribution will continue to expand, with climatic suitability modelling suggesting D. noxia can persist in all key grain regions, including large parts of Western Australia and Queensland. Australian populations of D. noxia appear to be anholocyclic, with no sexual stages being observed. The aphids can reproduce year round as long as host plants are available. Australian farmers have generally adopted prophylactic insecticide seed treatments and/or foliar sprays to manage D. noxia. Research is required to fully understand yield impacts, host preferences and host plant resistance associated with D. noxia. Cultural control through managing alternate host plants over summer, agronomic crop management, biological control and developments in host plant resistance should provide considerable future benefits. Key wordsexotic pest, invasion, management, review, Russian wheat aphid. DESCRIPTIONOriginally named Brachycolus noxius, the Russian wheat aphid (now known as Diuraphis noxia) was first recognised as a separate species by Mordvilko in a paper by Kurdjumov (1913). Detailed descriptions of D. noxia have been provided by Blackman and Eastop (1984) and Stoetzel (1987). In brief, D. noxia has an elongated, spindle-shaped body, with the tips of the legs and distal third of the (distinctively short) antennae black. The wings *pumina@unimelb.edu.au

show abstract

Influence of the surrounding landscape on the colonization rate of cereal aphids and phytovirus transmission in autumn

Cited by 19 publications

References 49 publications

Early planting, management of edges and non-crop habitats reduce potyvirus infection in maize

Early planting, management of edges and non-crop habitats reduce potyvirus infection in maize

Field specific monitoring of cereal yellow dwarf virus aphid vectors and factors influencing their immigration within fields

Biology, ecology and management of Diuraphis noxia (Hemiptera: Aphididae) in Australia

Contact Info

Product

Resources

About