Abstract
The crapemyrtle bark scale, Acanthococcus lagerstroemiae (Kuwana) (Hemiptera: Eriococcidae), is an invasive pest of crapemyrtles, Lagerstroemia spp. L. (Lythraceae) in the southeastern USA. Information about its temperature-dependent development and host range is limited. The objectives of this study were to evaluate the effects of temperature on the immature development of A. lagerstroemiae, and to determine plant species suitable for immature development and reproduction. Developmental time and survival of eggs were evaluated at 7 constant temperatures from 17.5 to 32 °C, and of nymphs at 20, 25, and 30 °C. Results suggested that 27.5 °C was the optimum temperature for egg hatching with the shortest time (10 d) and the highest hatching rate (95%). The developmental time for A. lagerstroemiae from nymph to prepupa and gravid female was 56 d and 68 d at 30 °C, respectively. Five plant species besides crapemyrtle (Lagerstroemia indica × fauriei L.) were able to support the immature development and reproduction of A. lagerstroemiae under no-choice conditions, including Lawsonia inermis L., Heimia salicifolia Link, Punica granatum L., Lythrum alatum Pursh (all Lythraceae), and Callicarpa americana L. (Lamiaceae). At wk 12 from inoculation, the density of gravid females was 482 ± 92 (mean ± standard error) on L. indica × fauriei, 200 ± 70 on C. americana, and < 150 on other species. Using data from developmental time and host range, integrated pest management (IPM) practitioners can implement preventive strategies for A. lagerstroemiae.
| Original language | English |
|---|---|
| Pages (from-to) | 181-186 |
| Number of pages | 6 |
| Journal | Florida Entomologist |
| Volume | 102 |
| Issue number | 1 |
| DOIs | |
| State | Published - Apr 1 2019 |
Bibliographical note
Publisher Copyright:© 2019 Florida Entomological Society. All rights reserved.
Funding
We thank Joey P. Quebedeaux and Gina Dimm Hebert of the Louisiana State University Agricultural Center, Hammond Research Station, Hammond, Louisiana, for providing test plants, and Otto Castillo of the Louisiana State University Agricultural Center, Entomology Department, Baton Rouge, Louisiana, for maintaining plant conditions in the greenhouse. This work was funded in part by the National Institute of Food and Agriculture, USDA, under award number 2014-70006-22632, and by the Louisiana State University Department of Entomology. the?Louisiana?State?University?Agricultural?Center,? Entomology?Depart- breadth:? phytochemical,? genetic,? behavioral,? and? physiological? perspectives? ment,?Baton?Rouge,?Louisiana,?for?maintaining?plant?conditions?in?the? on?the?interaction?between?a?native?herbivore?and?an?exotic?host.?PLoS?ONE? greenhouse.?This?work?was?funded?in?part?by?the?National?Institute?of? He?D,? Cheng?J,??hao?H,?Chen?S.?2008.?Biological?characteristic?and?control?ef-11:?e0147971.?doi:?[10.1371/journal.pone.0147971] Food? and? Agriculture,? USDA,? under? award? number? 2014-70006-22632,? ficacy? of? Eriococcus lagerstroemiae.? Chinese? Bulletin? of? Entomology? 45:? and?by?the?Louisiana?State?University?Department?of?Entomology. 812–814.
| Funders | Funder number |
|---|---|
| U.S. Department of Agriculture | 812–814, 2014-70006-22632 |
| U.S. Department of Agriculture | |
| US Department of Agriculture National Institute of Food and Agriculture, Agriculture and Food Research Initiative |
Keywords
- alternative hosts
- developmental time
- immature development
- no-choice test
- temperature effects
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Insect Science