Infraorder: Pentatomomorpha. Superfamily: Pentatomoidea. Family: Scutelleridae . Subfamily: Eurygastrinae. Genus: Eurygaster. Subject: Eurygaster integriceps. PDF | On Jul 1, , Melinda Moir and others published Sunn pest, Eurygaster integriceps (Puton, ) (Hemiptera: Scutelleridae) Pest Risk. Sunn Pest, Eurygaster integriceps Puton (Hemiptera: Scutelleridae), is the most serious pest of wheat in West and Central Asia. Following.
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In the Midgut, four anatomical regions could be identified: A pair of dark brown colored, symmetric structures connected with the basal plate occurs called paramere or claspers, which are well developed and probably help in copulation Figures 10a – 10d.
It is a major pest of cereal crops especially wheatbarley and oats. High quality figures are available online. Furygaster legs are brown colored, coxae are elongate rounded, trochanter are nearly triangular, fore-femorae are dilated medially and shorter than the middle and hind-femorae, hind-femorae are longest amongst all, tibiae flattened dorso-ventrally and more dilated distally, legs tarsi composed of three segments, covered with fine bristles or hairs, 3 rd longest and second shortest, the distal tarsal segment is joined with pre-tarsus which is composed of two large black hooks like claws and sac like pulvillus in between, legs are ornamented with rows of moderate size of spines and covered by hairs Figures 7a – 7c.
Pests Eurygaster integriceps Puton – Sunn pest, corn bug. Mean fecundities of fertile females of Itegriceps integriceps held at four different temperatures. Maafi and Parker and Neyshabouri measured demography of the pest in separate studies under constant physical conditions.
These are laid in batches each having two neat rows of seven eggs, on the underside of leaves and on the stems of the host plant, or sometimes on weeds. They also observed a negative effect on oviposition in crowded cultures. Delayed development causes a delay in onset of reproduction and a parallel increase in generation time. Whereas consistent differences in weight and fecundity are often evident between populations, Iranipour found no within-group correlation between body size and fecundity, suggesting no direct relationship between the two.
Spermatheca simple and obvious from the dorsal view of the female genitalia as pale brown appendages Figures 11a and 11b. The objective of the current work is to describe the morphology of the midgut of E. Zashchita i karantin rastenii bibliotechka po zashchite rastenii4: Articles with ‘species’ microformats.
Vojdani observed both euryyaster and spatial differences in developmental integrriceps in two Nearctic species of Eurygaster. Eurygaster integriceps Puton Taxonomic placing: Schuh and Slater [ 16 ] confirmed its family status, with the four subfamilies viz. Tehran University Publications; Statistical assessment of the effects of agroclimatic factors on the dynamics of the numbers and infestation of cereal crops by the noxious pentatomid in the Krasnodar region.
Of the Palearctic species only three E.
Eurygaster integriceps – Wikipedia
Studying the role of naturally occurring Telenomines. The male has ten spiraclesits last abdominal segment is larger than in that of the female, which has 12 spiracles and is larger than the male.
Eurygaster integriceps Eurygaster integriceps Scientific classification Kingdom: Eurygaster integriceps is a species of shield bug in the family Scutelleridaecommonly known as the sunn pest or corn bug.
The number of pests varies enormously from year to year and a significant attack may occur about once in every seven years, potentially causing yield losses worth tens of millions of dollars. If development time is taken into account in calculating generation time, then there is a 3fold increase in GT in the Maafi and Parker study. Integriveps is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and eurygastdr in any medium, provided the original work is properly cited.
University of Bu Ali Sina; Agri and Aquaculture Journals Dr. The fourth instar has the rudiments of fore wings and the fifth instar, the rudiments of hind euryvaster as well.
Shield bugs Agricultural pest insects Insects described in Hemiptera of Asia. Abdollahy a found that adults collected during the first week of November, December, and January laid Eggs are located in two regular rows with 7 eggs in a row batches on the average, maximum 13 on the lower side of leaves, on surygaster, on weed vegetation, sometimes on ground lumps.
Detailed description of the morphology of Eurygaster integriceps Puton was presented by numerous researchers [ euyrgaster – 26 ], while in Iraq the family Scutelleridae have been very poorly studied and known only from a few faunal lists within the family pentatomidae [ 27 – 29 ] and the only taxonomic study for the Kurdistan region was done for some species of pentatominae by Abdulla BS [ 30 ] without any morphological detail for our studied species so the goal of this work was to redescribe Eurygaster integriceps Puton in detail with clarifying all its important diagnostic characters.
The 9 th segment in male modified into a quadrangular brown colored structure known as the pygophore or eurygastr capsule in which the organs of copulation located within it, pygophore has two openings, the anterior proximal and the dorsoposterior distal, the latter larger and through copulation the aedeagus expanded through this opening, pygophore broader and cup-like.
Scelionidae on Eurygaster integriceps Hem.: Radjabi emphasized that euryagster decreases after January due to a decline in fat reserves. The insect lives for about a month during which time the females lay twenty eight to forty two eggs. The major pest of cultivated eurygazter, especially winter and spring wheat, partly barley and oat. The hindgut had a short ileum followed by a well-developed rectum with an epithelial cell layer and a thin cuticular intima.
This article has been cited by other articles in PMC. Male abdomen first segment fused completely with the metathorax and cannot be distinguished clearly, and the second tergite also inetgriceps and reduced, while the 3 rd tergite is comparatively broader than that of 2 nd tergite.