File(s) not publicly available

Floating row covers and pyriproxyfen help control silverleaf whitefly Bemisia tabaci (Gennadius) Biotype B (Homoptera: Aleyrodidae) in zucchini

journal contribution
posted on 06.12.2017, 00:00 by Sohail QureshiSohail Qureshi, David MidmoreDavid Midmore, Shamsa SyedaShamsa Syeda, C Playford
In zucchini, the use of row covers until flowering and the insect growth regulator (IGR) pyriproxyfen are effective methods of reducing the numbers of insects, especially silverleaf whitefly (Bemisia tabaci (Gennadius) Biotype B), on plants. We compared floating row covers (FRCs) up until flowering with silverleaf whitefly (SLW) introduced (FRC + SLW), or not introduced (FRC-only), or with introduction of SLW in open plots (SLW-only), or with introduction of SLW in open plots with IGR (SLW + IGR). FRC increased temperature and humidity compared with the uncovered treatments. Average fruit weight was less (P<0.01) for the FRC + SLW treatment compared with the other treatments and the percentage of marketable fruit was less for the FRC + SLW than for the other three treatments. This result indicates that the use of either row covers or IGR controls whiteflies, reduces fruit damage and increases the size, weight, and quality of fruit, and may also control other sap-sucking insects. However, if SLW are already present on plants, the use of FRC may reduce predation and favour build up of SLW. Thus, FRC and IGR, if used judiciously, may provide an effective alternative to broad-spectrum pesticides in small-scale cucurbit production.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Volume

46

Issue

4

Start Page

313

End Page

319

Number of Pages

7

eISSN

1440-6055

ISSN

1326-6756

Location

Australia

Publisher

Blackwell Publishing

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Centre for Plant and Water Science; Department of Primary Industries and Fisheries;

Era Eligible

Yes

Journal

Australian journal of entomology.