The Distribution and Management of Two Invasive Pests of Eucalyptus: The Red Gum Lerp Psyllid, Glycaspis brimblecombei (Hemiptera: Psylloidae), and the Blue Gum Chalcid Wasp, Leptocybe invasa (Hymenoptera: Eulophidae), in Zimbabwe

2018 ◽  
Vol 26 (1) ◽  
pp. 104-115 ◽  
Author(s):  
S. Ndlela ◽  
T. Manyangadze ◽  
A. Sachisuko ◽  
S. van der Lingen ◽  
I.A. Makowe
Keyword(s):  
Invasive Pests ◽  
Glycaspis Brimblecombei ◽  
Leptocybe Invasa ◽  
Red Gum Lerp Psyllid ◽  
Blue Gum ◽  
Chalcid Wasp

Development of Galls in Eucalyptus Due to Infestation of Leptocybe invasa and Its Effects on Growth of Seedlings.

2018 ◽  
Vol 41 (1) ◽  
pp. 77-81
Author(s):  
N. Roychoudhury ◽  
Keyword(s):  
Growth And Development ◽  
Inverse Relationship ◽  
Maximum Growth ◽  
Practical Application ◽  
Young Leaves ◽  
Collar Diameter ◽  
Leptocybe Invasa ◽  
Growth Of Seedlings ◽  
Blue Gum ◽  
Chalcid Wasp

Leptocybe invasa Fisher & LaSalle (Hymenoptera : Eulophidae), commonly known as blue gum chalcid wasp, is a major gall making insect species of eucalyptus, causing serious damage to seedlings in nursery stage. An insectary/nursery of eucalyptus was developed at this Institute to study the stages of gall development, number of galls formed with the age of seedling and effects of galls on the growth of seedling. Results revealed that there are five distinct stages of gall development, first stage initiates by the insertion of eggs on the epidermis of soft young leaves, petioles and stems and final stage ends with the emergence of adult wasps from galls through exit holes. It was observed that the development of galls start after one month age of seedlings, and there was significant (P<0.05-P<0.01) variation in growth (height and collar diameter), number of galls in leaves, petioles and stems, and total number of galls/seedling in respect of age. The data clearly exhibited that one month old seedlings were free from the attack of L. invasa as because there was complete absence of galls. Further, it was recorded that seedlings growth (height and collar diameter) was affected by the development of galls, minimum growth was recorded in case of maximum galls developed whereas less galls were noticed for maximum growth of seedlings. There was an inverse relationship exists between seedling growth and development of galls. The practical application of findings was discussed in the light of the present observations.

scholarly journals Development of the red gum lerp psyllid Glycaspis brimblecombei (Hemiptera: Aphalaridae) in Eucalyptus spp.

2020 ◽  
Vol 48 (127) ◽  
Author(s):  
Jaqueline Magalhães Pereira ◽  
Edson Luiz Lopes Baldin ◽  
Everton Pires Soliman ◽  
Carlos Frederico Wilcken
Keyword(s):  
Glycaspis Brimblecombei ◽  
Red Gum Lerp Psyllid

scholarly journals Eucalyptus Psyllid, Blastopsylla occidentalis Taylor and Red Gum Lerp Psyllid, Glycaspis brimblecombei Moore (Insecta: Hemiptera: Psyllidae)

EDIS ◽  
1969 ◽  
Vol 2005 (2) ◽  
Author(s):  
Susan E. Halbert ◽  
Raymond Gill ◽  
James N. Nisson
Keyword(s):  
Cooperative Extension ◽  
Cooperative Extension Service ◽  
Extension Service ◽  
University Of Florida ◽  
Glycaspis Brimblecombei ◽  
Agricultural Sciences ◽  
Red Gum Lerp Psyllid ◽  
First Time

Two psyllids that feed on Eucalyptus were found for the first time in Florida in the spring of 2001 in tourist parks in the Orlando area: Glycaspis brimblecombei Moore, the red gum lerp psyllid, and Blastopsylla occidentalis Taylor, the eucalyptus psyllid. Both species originate in Australia and already are well established in California, which is the most likely immediate source of the Florida populations. This document is EENY-306 (originally published as DPI Entomology Circular 407), 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: October 2003. EENY-306/IN583: Eucalyptus Psyllid, Blastopsylla occidentalis Taylor and Red Gum Lerp Psyllid, Glycaspis brimblecombei Moore (Insecta: Hemiptera: Psyllidae) (ufl.edu)

scholarly journals Management of Blue Gum Chalcid (Leptocybe invasa Fisher & La Salle (Hymenoptera: Eulophidae) infestation on different species of Eucalyptus trees in Kalu district, Eastern Amhara, Ethiopia

2020 ◽  
Vol 13 (3) ◽  
pp. 197-214
Author(s):  
Tigabu Redae Alle ◽  
Adane Tesfaye Lema ◽  
Seid Muhie Dawud
Keyword(s):  
Tree Species ◽  
Insect Pests ◽  
Block Design ◽  
Insect Pest ◽  
Eucalyptus Camaldulensis ◽  
Pest Infestation ◽  
Randomized Complete Block Design ◽  
Leptocybe Invasa ◽  
Control Application ◽  
Blue Gum

The recently introduced chalcid pest known as the Blue Gum Chalcid (BGC) (L. invasa) is currently one of the major insect pests of Eucalyptus tree species in Ethiopia. A research was conducted in Kalu district, South Wollo, Eastern Amhara, Ethiopia, the main objective of which was to evaluate the effectiveness of synthetic insecticides, hoeing and water showering options against BGC. Two parallel experiments were conducted in the nursery and in the field. Eucalyptus camaldulensis, E. saligna, E. viminalis, E. citrodora and E. globulus were considered in the nursery at Chorisa. One to three-year old E. camaldulensis plantations were considered at Tikuro plantation site. At the nursery, seven treatments and at the field 10 treatments were tested in a Randomized Complete Block Design (RCBD) with three replications from January to February 2019, where treatments were applied 3 times at 15-day intervals. Results from the 1-year old plantation revealed that application of Dimethoate 40%, Carbofuran 3G and Dimethoate 40% + hoeing followed by Carbofuran 3G + hoeing and Thiamethoxam 25WG were effective in checking the BGC insect pest infestation. In the 3-year old plantation, Carbofuran 3G significantly reduced the infestation followed by Dimethoate 40%. At the nursery, Dimethoate 40% and Carbofuran 3G reduced the infestation followed by Carbofuran 3G + Dimethoate 40% and thiamethoxam 25WG. Water showering and hoeing did not reduce BGC infestation in all cases at the field plantations. Treatments that received synthetic insecticides and hoeing had low infestation, the reason for which was the insecticide rather than the hoeing, because the hoeing alone didn’t differ from the control. Application of Dimethoate 40% and Carbofuran 3G with hoeing and weeding activities were recommended to manage and limit BGC insect pest infestations.

New Record of Insect Pests on Seedlings of Eucalyptus

2015 ◽  
Vol 38 (2) ◽  
pp. 117-124
Author(s):  
N. Roychoudhury ◽  
Subhash Chandra ◽  
Ram Singh ◽  
Shashi Barve ◽  
Anand Das
Keyword(s):  
New Record ◽  
Insect Pests ◽  
Insect Pest ◽  
First Record ◽  
Eurema Hecabe ◽  
Achaea Janata ◽  
Leptocybe Invasa ◽  
Hyposidra Talaca ◽  
Lepidoptera Noctuidae ◽  
Blue Gum

The present paper reports the occurrence of insects damaging Eucalyptus in nursery stage. Out of nine insects recorded, seven species observed as occasional defoliating species, viz. Achaea janata (Linnaeus) (Lepidoptera : Noctuidae), Catapsilia crocale Cramer (Lepidoptera : Pieridae), Dasychira grotei Moore (Lepidoptera : Lymantriidae), Eurema hecabe Linnaeus (Lepidoptera : Pieridae), Hyposidra talaca (Walker) (Lepidoptera : Geometridae), Lymantria sobrina Moore (Lepidoptera : Lymantriidae) and Spodoptera litura (Fabricius) (Lepidoptera : Noctuidae), one rare sap-sucking species, Chrysocoris purpureus Westwood (Heteroptera : Pentatomodae) and one gall making species, Leptocybe invasa Fisher & LaSalle (Hymenoptera : Eulophidae). Among the nine species collected, six defoliators and one sap sucker are new addition to the Eucalyptus entomology. Further, H. talaca is the first record of occurrence on Eucalyptus in India. On the basis of percentage infestation/damage caused by above insects, L. invasa, commonly known as blue gum chalcid wasp, was recorded only as a key insect pest in nursery stage of Eucalyptus. The results have been discussed in the light of the present observations.

First record of the red gum lerp psyllid, Glycaspis brimblecombei Moore (Hemiptera: Psyllidae), in Zambia

2016 ◽  
Vol 55 (3) ◽  
pp. 380-382 ◽  
Author(s):  
Donald Chungu ◽  
Obote Shakacite ◽  
Hope Chama ◽  
Bertha Chitala Chungu ◽  
Keddy Mbindo ◽  
...  
Keyword(s):  
First Record ◽  
Glycaspis Brimblecombei ◽  
Red Gum Lerp Psyllid

scholarly journals Re-Visiting the Incidence of Environmental Factors on a Pre-Imaginal Population of the Red Gum Lerp Psyllid, Glycaspis brimblecombei Moore

Insects ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 860
Author(s):  
Jürgen Junk ◽  
Michael Eickermann ◽  
Milan Milenovic ◽  
Pompeo Suma ◽  
Carmelo Rapisarda
Keyword(s):  
Relative Humidity ◽  
Air Temperature ◽  
Climatic Factors ◽  
Eucalyptus Camaldulensis ◽  
Fixed Number ◽  
Invasive Pest ◽  
Time Interval ◽  
Climatic Data ◽  
Glycaspis Brimblecombei ◽  
Red Gum Lerp Psyllid

The red gum lerp psyllid, Glycaspis brimblecombei Moore (Hemiptera: Aphalaridae), is an invasive pest of Eucalyptus trees worldwide, responsible for serious damage, including the death of plants. Knowledge about the incidence of climatic factors on the insect development are essential to define useful strategies for controlling this pest. To this aim, G. brimblecombei has been sampled by two different methods from April 2012 to February 2013 in eastern Sicily on Eucalyptus camaldulensis in nine different sites, where the main climatic data (air temperature, relative humidity, and precipitation) have been also registered. The Glycaspis brimblecombei population showed a similar trend in all nine sites, positively correlated only with air temperature, but a negative correlation has emerged with precipitation and relative humidity. The results show the need for a deeper understanding of the role played by other abiotic (such as different concentrations of CO2) and biotic (e.g., the antagonistic action of natural enemies, competition with other pests, etc.) factors. The greater sensitivity, even at low densities of psyllid, of sampling methods based on the random collection of a fixed number of leaves compared to methods based on the collection of infested leaves in a fixed time interval has been also outlined.

scholarly journals Longevity and survival ofLeptocybe invasa(Hymenoptera: Eulophidae), an invasive gall inducer onEucalyptus, with different diets and temperatures

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5265 ◽  
Author(s):  
Amanda Rodrigues De Souza ◽  
Leonardo Rodrigues Barbosa ◽  
José Raimundo de Souza Passos ◽  
Bárbara Monteiro de Castro e Castro ◽  
José Cola Zanuncio ◽  
...  
Keyword(s):  
Management Strategies ◽  
Distilled Water ◽  
Eucalyptus Leaves ◽  
Different Temperatures ◽  
Biological Aspects ◽  
Leptocybe Invasa ◽  
Reproductive Females ◽  
Honey Solution ◽  
Gall Inducer ◽  
Blue Gum

The blue gum chalcid,Leptocybe invasaFisher & LaSalle (Hymenoptera: Eulophidae), causes galls onEucalyptusspp. leaf midribs, petioles and stems.Biological aspects need to be studied to assist in developing management strategies and to maintain this insect in the laboratory to rear the parasitoidSelitrichodes neseriKelly & La Salle (Hymenoptera: Eulophidae) that depends on having a supply ofEucalyptusseedlings infested byL. invasa.We evaluated the longevity and survival ofL. invasaindividual non reproductive females fed with six different diets (pure honey, 50% honey solution, pure honey plus eucalyptus leaves, eucalyptus leaves, distilled water, or no food) and seven different temperatures (10, 14, 18, 22, 26, 30 and 34 °C).Leptocybe invasafed with 50% honey solution and reared at 14 or 18 °C showed the greatest longevity and survival.

scholarly journals First record of invasive Australian psyllid species Glycaspis brimblecombei Moore, 1964 (Hemiptera: Psylloidea: Aphalaridae) in Croatia

2021 ◽  
Vol 29 (2) ◽  
pp. 287-292
Author(s):  
Maja Pintar ◽  
◽  
Luka Popović ◽  
Mladen Šimala ◽  
Vjekoslav Markotić ◽  
...  
Keyword(s):  
First Record ◽  
Glycaspis Brimblecombei ◽  
First Occurrence ◽  
Red Gum Lerp Psyllid ◽  
First Time ◽  
New Pest

The Australian red gum lerp psyllid Glycaspis brimblecombei Moore, 1964 is recorded for the first time in Croatia. In the paper, a brief overview of the new pest with the locality of its first occurrence is provided.

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