Impact of Eucalyptus gall wasp,Leptocybe invasainfestation on growth and biomass production ofEucalyptus grandisandE. salignaseedlings in Tanzania

2015 ◽  
Vol 61 (3) ◽  
pp. 220-227
Author(s):  
Revocatus Petro ◽  
Seif S. Madoffe ◽  
Said Iddi ◽  
Wilson A. Mugasha
Keyword(s):  
Biomass Production ◽  
Gall Wasp ◽  
Eucalyptus Gall Wasp

Structure and Sense Organs of Ovipositors of an Endoparasitoid Aprostocetus causalis and an Ectoparasitoid Quadrastichus mendeli in Leptocybe spp.

2019 ◽  
Vol 25 (1) ◽  
pp. 250-256
Author(s):  
Zong-You Huang ◽  
Si-Yan Li ◽  
Wen Lu ◽  
Xia-Lin Zheng
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Host Selection ◽  
Selection Process ◽  
Sense Organs ◽  
Gall Wasp ◽  
Essential Information ◽  
Transmission Electron ◽  
Host Detection ◽  
Eucalyptus Gall Wasp

AbstractLittle is known of the olfactory mechanisms of host detection in the ovipositors of endoparasitoids and ectoparasitoids. An endoparasitoid Aprostocetus causalis La Salle & Wu (Hymenoptera: Eulophidae) and an ectoparasitoid Quadrastichus mendeli Kim & La Salle (Hymenoptera: Eulophidae: Tetrastichinae) are the two parasitoids of the eucalyptus gall wasp Leptocybe spp. Structures and sense organs of ovipositors of A. causalis and Q. mendeli were studied using scanning and transmission electron microscopy, which provided essential information for exploring the mechanism of host detection by endoparasitoid and ectoparasitoid. The ovipositors of two parasitoids consisted of the first and second valvulae and ended in a pointed tip. There were three types of microtrichia, two types of sensilla chaetica, and one type of sensilla campaniformia on the ovipositors of A. causalis and Q. mendeli. However, Q. mendeli has the fourth type of microtrichia on the ovipositor. The morphology, types, distribution, length, and width of these sensilla and microtrichia were described, and their possible functions are discussed in conjunction with the stinging, oviposition, and the host selection process.

scholarly journals Biological traits of Quadrastichus mendeli (Hymenoptera, Eulophidae), parasitoid of the eucalyptus gall wasp Leptocybe invasa (Hymenoptera, Eulophidae) in Thailand

Parasite ◽  
2019 ◽  
Vol 26 ◽  
pp. 8
Author(s):  
Benjakhun Sangtongpraow ◽  
Kosol Charernsom
Keyword(s):  
Developmental Time ◽  
Egg Load ◽  
Biological Traits ◽  
Female Size ◽  
Gall Wasp ◽  
Potential Fecundity ◽  
The Mean ◽  
Leptocybe Invasa ◽  
Eucalyptus Gall Wasp ◽  
Honey Solution

Quadrastichus mendeli Kim & La Salle, a parasitoid of Leptocybe invasa Fisher & La Salle, is a uniparental species. This study assessed the biological traits of Q. mendeli in the laboratory at a temperature of 27 ± 1 °C. Diets had a highly significant effect on the mean longevity of female Q. mendeli. Feeding honey solution prolonged the mean longevity of the parasitoid to 4.80 days. The estimated 50% survival period was 3 days. The mean potential fecundity in all ages was 8.85 eggs per female. Age had a highly significant effect on the mean egg load. There was a positive relationship between egg load and female size. The mean of realized fecundity throughout the life span was 2.47 progenies per female. The mean developmental time of Q. mendeli from the egg to adult stage was 27.06 days. The shorter developmental time of Q. mendeli in comparison to its host can be considered a reason for the successful control of L. invasa in Thailand.

scholarly journals First record of the eucalyptus gall wasp, Leptocybe invasa Fisher and La Salle (Hymenoptera: Eulophidae), in Iraq

2012 ◽  
Vol 65 (3) ◽  
pp. 93-98 ◽  
Author(s):  
Feyroz R. Hassan
Keyword(s):  
New Genus ◽  
Eucalyptus Camaldulensis ◽  
First Record ◽  
Kurdistan Region ◽  
New Genus And Species ◽  
Gall Wasp ◽  
Leptocybe Invasa ◽  
Eucalyptus Gall Wasp ◽  
First Time

The eucalyptus gall wasp, <em>Leptocybe invasa </em>(Hymenoptera: Eulophidae), is a new genus and species recorded for the first time in Duhok city, Kurdistan region, Iraq. <em>L. invasa </em>makes galls on petioles, leaf midribs and young branches of <em>Eucalyptus camaldulensis </em>saplings and trees. This galling eventually can lead to heavily injured saplings. The average number of galls was 37.23 gall/branch, and major infestation was on leaf midribs with an average of 19.35 galls.

scholarly journals First record of eucalyptus gall wasp Leptocybe invasa (Hymenoptera: Eulophidae) in Mexico

2015 ◽  
Vol 86 (4) ◽  
pp. 1095-1098 ◽  
Author(s):  
Juan Manuel Vanegas-Rico ◽  
José Refugio Lomeli-Flores ◽  
Esteban Rodríguez-Leyva ◽  
Eduardo Jiménez-Quiroz ◽  
Juli Pujade-Villar
Keyword(s):  
First Record ◽  
Gall Wasp ◽  
Leptocybe Invasa ◽  
Eucalyptus Gall Wasp

Biology and host preference of Selitrichodes neseri: A potential biological control agent of the Eucalyptus gall wasp, Leptocybe invasa

2014 ◽  
Vol 78 ◽  
pp. 33-41 ◽  
Author(s):  
Gudrun Dittrich-Schröder ◽  
Marlene Harney ◽  
Stefan Neser ◽  
Tanya Joffe ◽  
Samantha Bush ◽  
...  
Keyword(s):  
Biological Control ◽  
Host Preference ◽  
Biological Control Agent ◽  
Control Agent ◽  
Gall Wasp ◽  
Leptocybe Invasa ◽  
Eucalyptus Gall Wasp

scholarly journals EUCALYPTUS GALL WASP, Leptocybe invasa FISHER & LASALLE (HYMENOPTERA: EULOPHIDAE) IN BRAZIL: NEW FOREST PEST REACHES THE NEW WORLD

2015 ◽  
Vol 83 (2) ◽  
pp. 136
Author(s):  
Valmir Antonio Costa ◽  
Evoneo Berti Filho ◽  
Carlos Frederico Wilcken ◽  
José Luiz Stape ◽  
John LaSalle ◽  
...  
Keyword(s):  
New World ◽  
Forest Pest ◽  
Gall Wasp ◽  
Leptocybe Invasa ◽  
New Forest ◽  
Eucalyptus Gall Wasp

scholarly journals Biological control of eucalyptus Gall wasp, Leptocybe invasa Fisher & La Salle (Hymenoptera: Eulophidae) in Punjab, India

2020 ◽  
Vol 5 (2) ◽  
pp. 105-113
Author(s):  
Mohd. Yousuf ◽  
Sudhir Singh ◽  
Mohsin Ikram ◽  
Salman Khan
Keyword(s):  
Biological Control ◽  
Type Species ◽  
Biological Control Agents ◽  
Gall Wasp ◽  
Leptocybe Invasa ◽  
Eucalyptus Gall Wasp

In this investigation, biological control of eucalyptus Gall wasp, Leptocybe invasa Fisher & La Salle (Hymenoptera: Eulophidae) in Punjab, India was investigated. The genus Leptocybe Fisher & La Salle (Hymenoptera: Eulophidae) was founded with its type species, L. invasa from Israel in 2004. Adult wasps of L. invasa   induce galls on the shoots and midribs of leaves of Eucalyptus sp. and also damage nursery seedlings and young plantations. In the present study, survey was carried out from the year 2012 to 2014, on gall wasp infestation in different eucalyptus growing areas of Punjab. Observations  revealed  that  eucalyptus  growing  areas  in  Punjab were  under  the threat  of  attack  by  gall  wasp,  L. invasa.  During the present study, biological control agents Megastimus viggianii and Quadrastichus mendeli have been successfully applied in the gall infested areas of Punjab, from 2012 to 2017, where infestation of gall wasp was regularly decreased and came below 10 % by July, 2017. Consequently, Eucalyptus gall forming insect L. invasa has been controlled successfully by applying the biological control through releasing the parasitoids (Megastimus viggianii and Quadrastichus mendeli), in Punjab, India.

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