Assessing transmission of crop diseases by insect vectors in a landscape context

Yves Carriere, B. Degain, K. A. Hartfield, Kurt D Nolte, Stuart Marsh, C. Ellers-Kirk, Willem van Leeuwen, L. Liesner, P. Dutilleul, John C Palumbo

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Theory indicates that landscape composition affects transmission of vector-borne crop diseases, but few empirical studies have investigated how landscape composition affects plant disease epidemiology. Since 2006, Bemisia tabaci (Gennadius) has vectored the cucurbit yellow stunting disorder virus (CYSDV) to cantaloupe and honeydew melons (Cucumis melo L.) in the southwestern United States and northern Mexico, causing significant reductions in yield of fall melons and increased use of insecticides. Here, we show that a landscape-based approach allowing simultaneous assessment of impacts of local (i.e., planting date) and regional (i.e., landscape composition) factors provides valuable insights on how to reduce crop disease risks. Specifically, we found that planting fall melon fields early in the growing season, eliminating plants germinating from seeds produced by spring melons after harvest, and planting fall melon fields away from cotton and spring melon fields may significantly reduce the incidence of CYSDV infection in fall melons. Because the largest scale of significance of the positive association between abundance of cotton and spring melon fields and CYSDV incidence was 1,750 and 3,000 m, respectively, reducing areas of cotton and spring melon fields within these distances from fall melon fields may decrease CYSDV incidence. Our results indicate that landscape-based studies will be fruitful to alleviate limitations imposed on crop production by vector-borne diseases.

Original languageEnglish (US)
Pages (from-to)1-10
Number of pages10
JournalJournal of Economic Entomology
Volume107
Issue number1
DOIs
StatePublished - Feb 2014

Fingerprint

insect vectors
melons
Cucurbit yellow stunting disorder virus
insect
virus
crop
crops
cotton
honeydew
incidence
epidemiology
crop production
insecticide
honeydew melons
planting
growing season
vector-borne diseases
cantaloupes
Southwestern United States
seed

Keywords

  • Bemisia tabaci
  • Classification and regression tree
  • Cucurbit yellow stunting disorder virus
  • Integrated pest management
  • Landscape ecology

ASJC Scopus subject areas

  • Insect Science
  • Ecology

Cite this

Assessing transmission of crop diseases by insect vectors in a landscape context. / Carriere, Yves; Degain, B.; Hartfield, K. A.; Nolte, Kurt D; Marsh, Stuart; Ellers-Kirk, C.; van Leeuwen, Willem; Liesner, L.; Dutilleul, P.; Palumbo, John C.

In: Journal of Economic Entomology, Vol. 107, No. 1, 02.2014, p. 1-10.

Research output: Contribution to journalArticle

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