Release of native Trichogramma minutum to control grape berry moth

Sudha Nagarkatti, Patrick C. Tobin, Michael Craig Saunders, Andrew J. Muza

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We studied the effects of inundative releases of the egg parasitoid Trichogramma minutum Riley (Hymenoptera: Trichogrammatidae) on economic injury by grape berry moth, Endopiza viteana (Clemens) (Lepidoptera: Tortricidae). Trichogramma minutum originally collected from natural host populations near North East, Pennsylvania, was mass produced in tobacco hornworm hosts and Mediterranean flour moth. We released T. minutum in border rows, where grape berry moth infestation is typically high, of experiment field station and commercial vineyards from 1996 to 1999. We recorded significant reductions in economic injury in plots where parasitoids were released. In vineyards with low to moderate grape berry moth abundance, four releases during the growing season were adequate in reducing damage at harvest to below 3%. In high-risk vineyards, T. minutum releases reduced damage to levels below 15%. The use of buckwheat as a cover crop to provide nectar in combination with parasitoid releases showed potential benefits in parasitoid activity. A biocarrier and Biosprayer™ were used in mechanized parasitoid-release operations, and no adverse effect on parasitoid emergence was recorded from parasitized eggs using this approach.

Original languageEnglish (US)
Pages (from-to)589-598
Number of pages10
JournalCanadian Entomologist
Volume135
Issue number4
DOIs
StatePublished - Jan 1 2003

Fingerprint

Endopiza viteana
Trichogramma minutum
Moths
Vitis
parasitoid
moth
Fruit
vineyard
vineyards
Economics
Fagopyrum
Plant Nectar
egg parasitoid
Manduca
economics
Ephestia kuehniella
Hymenoptera
damage
Trichogrammatidae
Lepidoptera

All Science Journal Classification (ASJC) codes

  • Structural Biology
  • Ecology, Evolution, Behavior and Systematics
  • Physiology
  • Molecular Biology
  • Insect Science

Cite this

Nagarkatti, S., Tobin, P. C., Saunders, M. C., & Muza, A. J. (2003). Release of native Trichogramma minutum to control grape berry moth. Canadian Entomologist, 135(4), 589-598. https://doi.org/10.4039/n02-099
Nagarkatti, Sudha ; Tobin, Patrick C. ; Saunders, Michael Craig ; Muza, Andrew J. / Release of native Trichogramma minutum to control grape berry moth. In: Canadian Entomologist. 2003 ; Vol. 135, No. 4. pp. 589-598.
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Nagarkatti, S, Tobin, PC, Saunders, MC & Muza, AJ 2003, 'Release of native Trichogramma minutum to control grape berry moth', Canadian Entomologist, vol. 135, no. 4, pp. 589-598. https://doi.org/10.4039/n02-099

Release of native Trichogramma minutum to control grape berry moth. / Nagarkatti, Sudha; Tobin, Patrick C.; Saunders, Michael Craig; Muza, Andrew J.

In: Canadian Entomologist, Vol. 135, No. 4, 01.01.2003, p. 589-598.

Research output: Contribution to journalArticle

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