Proximity to host plant of a congener determines parasitism of a waterhyacinth biological control agent by a native parasitoid
Type de document
journalArticle
Langue source
Anglais
Titre français
Titre anglais
Proximity to host plant of a congener determines parasitism of a waterhyacinth biological control agent by a native parasitoid
Auteur(s)
- GOODE A. B. C.
- TIPPING P. W.
- POKORNY E. N.
- KNOWLES B. K.
- SALINAS L. S.
- GETTYS L. A.
Editeur(s)
Autre(s)
Id
X5JUHYA9
Version
2250
Date ajout
21 décembre 2020 16:18
Date modification
21 décembre 2020 16:18
Résumé anglais
The biological control agent Megamelus scutellaris Berg (Hemiptera: Delphacidae) was released in Florida in 2010 to improve control of the invasive aquatic plant, Pontederia (Eichhornia) crassipes (Mart.) Solms (Commelinales: Pontederiaceae). A native egg parasitoid, Kalopolynema ema (Schauff and Grissell) (Hymenoptera: Mymaridae), was documented utilizing M. scutellaris, potentially limiting its effectiveness as a biological control agent. An experiment to determine if the distance from K. ema’s native host impacted parasitism rate of M. scutellaris was conducted in artificial ponds with naturally occurring populations of the native insect species. Models indicated that parasitism decreased with distance from the native host and with increasing M. scutellaris density. Although parasitism increased with K. ema density, rainfall, and temperature, parasitism was low with over half of the test plants indicating no signs of parasitism on M. scutellaris. The lack of a density dependent response by K. ema suggests it will not interfere with biological control of P. crassipes in Florida.
Note
None
CRAW tags
- AB - Utile à l'AB
- biocontrol
- FREDO lutte
- FREDO santé végétale
- GEO Etats-Unis
WEB tags
- mymaridae
- egg parasitoid
- integrated plant management
- waterhyacinth
Titre de la publication
Biological Control
Pages
104477
Date caractères
November 17, 2020
Date publication
17 novembre 2020
Doi
10.1016/j.biocontrol.2020.104477
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Il est donc plus fiable et permanent qu'une URL classique
Issn
1049-9644
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