Biological invasion by the cycad‐specific scale pest Aulacaspis yasumatsui (Diaspididae) into Cycas revoluta (Cycadaceae) populations on Amami‐Oshima and Okinawa‐jima, Japan [PDF]
Plant Species Biology, Volume 40, Issue 4, Page 280-291, July 2025.This article details the invasion of cycad aulacaspis scale into the islands of Okinawa‐Jima and Amami‐Oshima. Several recommendations are proposed in this article by members of the IUCN cycad specialist group and experts in the biological control of this scale insect.
Benjamin E. Deloso +12 more
wiley +3 more sources
Host specificity of parasitoids (Encyrtidae) toward armored scale insects (Diaspididae): Untangling the effect of cryptic species on quantitative food webs. [PDF]
Ecol Evol, 2018 A high degree of cryptic species in host–parasitoid systems refines the true network structure and may cause us overestimating the stability of these interaction webs. Abstract Host specificity of parasitoids may be measured by various specialization indices to assess the variation of interaction strength among species and the structure of the wider ...
Qin YG +7 more
europepmc +2 more sources
Three invasive insects alter Cycas micronesica leaf chemistry and predict changes in biogeochemical cycling. [PDF]
Commun Integr Biol, 2016 Leaf litter chemical traits were measured for Cycas micronesica plants in Guam following leaf herbivory by the scale Aulacaspis yasumatsui, the butterfly Chilades pandava caterpillar, or the leaf miner Erechthias sp. to determine the influence of the non-
Marler TE, Dongol N.
europepmc +2 more sources
Observed plant recovery of the endangered Cycas micronesica populations on the island of Guam: plant resistance or biocontrol [PDF]
Research Ideas and OutcomesThe island of Guam’s only gymnosperm and historically one of the island’s most abundant trees, Cycas micronesica, has been devastated by high mortality due primarily to the armoured scale Aulacaspis yasumatsui. This cycad-specific scale pest invaded Guam
Irene Terry, Thomas Marler
doaj +5 more sources
A review of the Indonesian species of the family Signiphoridae (Hymenoptera, Chalcidoidea), with description of three new species. [PDF]
Zookeys, 2019 Volume: 897Start Page: 29 ...
Schmidt S +4 more
europepmc +5 more sources
South African Cycads at Risk:Aulacaspis yasumatsui(Hemiptera: Coccoidea: Diaspididae) in South Africa [PDF]
African Entomology, 2015 The scale insect Aulacaspis yasumatsui is native to Southeast Asia and a major pest of cycad (Cycadales) plants. Due to an increase in worldwide trading of cycads, A.
Teresa A Coutinho, Jolanda Roux
exaly +2 more sources
Guidance on the environmental risk assessment of plant pests [PDF]
EFSA J, 2011 The European Food Safety Authority (EFSA) requested the Panel on Plant Health to develop a methodology for assessing the environmental risks posed by harmful organisms that may enter, establish and spread in the European Union.
Baker, R. +20 more
europepmc +2 more sources
EDIS, 2002 This document is EENY-096, one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: July 1999.
Thomas J. Weissling +2 more
doaj +5 more sources
Horticulturae, 2023 Cycad transplantation and asexual propagation by stem cuttings are highly successful horticultural procedures because the manoxylic stems contain copious nonstructural carbohydrates.
Thomas E. Marler
doaj +1 more source
Horticulturae, 2021 The invasion of numerous countries by the armored scale Aulacaspis yasumatsui Takagi has caused widespread mortality of host Cycas species. Few studies have looked at reproductive biology responses of host plants to the herbivore.
Thomas E. Marler
doaj +1 more source