scholarly journals Effects ofSoybean Vein Necrosis Viruson Life History and Host Preference of Its Vector,Neohydatothrips variabilis, and Evaluation of Vector Status ofFrankliniella triticiandFrankliniella fusca

2016 ◽  
Vol 109 (5) ◽  
pp. 1979-1987 ◽  
Author(s):  
Stacy Keough ◽  
Jinlong Han ◽  
Tyler Shuman ◽  
Kiersten Wise ◽  
Punya Nachappa
Keyword(s):  
Life History ◽  
Host Preference ◽  
Vein Necrosis ◽  
Neohydatothrips Variabilis

scholarly journals Evaluation of Soybean for Resistance to Neohyadatothrips variabilis (Thysanoptera: Thripidae) Noninfected and Infected With Soybean Vein Necrosis Virus

2019 ◽  
Vol 113 (2) ◽  
pp. 949-955 ◽  
Author(s):  
D Lagos-Kutz ◽  
M L Pawlowski ◽  
J Haudenshield ◽  
J Han ◽  
L L Domier ◽  
...  
Keyword(s):  
Choice Experiments ◽  
The United States ◽  
Necrosis Virus ◽  
Plant Introductions ◽  
Soybean Genotypes ◽  
Efficient Vector ◽  
Vein Necrosis ◽  
Neohydatothrips Variabilis ◽  
Multiple Species ◽  
Soybean Thrips

Abstract Soybean vein necrosis virus (SVNV) was first identified in Arkansas and Tennessee in 2008 and is now known to be widespread in the United States and Canada. Multiple species of thrips transmit this and other tospoviruses with Neohydatothrips variabilis (Beach) (soybean thrips) cited as the most efficient vector for SVNV. In this study, 18 soybean, Glycine max (L.) Merr., genotypes were evaluated in four experiments by infesting plants with noninfected and SVNV-infected thrips using choice and no-choice assays. In both choice experiments with noninfected and SVNV-infected thrips, the lowest number of immature soybean thrips occurred on plant introductions (PIs) 229358 and 604464 while cultivars Williams 82 and Williamsfield Illini 3590N supported higher counts of mature thrips. The counts between the two assays (noninfected and SVNV-infected thrips) were positively correlated. In both no-choice experiments with noninfected and SVNV-infected thrips, counts of thrips did not differ by soybean genotypes. Further studies are needed to characterize the inheritance and mechanisms involved in the resistance found in the choice assay.

Life-history and host preference of Trichopria drosophilae, a pupal parasitoid of spotted wing drosophila

BioControl ◽  
2016 ◽  
Vol 61 (4) ◽  
pp. 387-397 ◽  
Author(s):  
Xin-Geng Wang ◽  
Gülay Kaçar ◽  
Antonio Biondi ◽  
Kent M. Daane
Keyword(s):  
Life History ◽  
Host Preference ◽  
Spotted Wing Drosophila ◽  
Pupal Parasitoid

Studies on life history and host preference of pulse beetle, Callosobruchus chinensis (L.) on different pulses

2019 ◽  
Vol 43 (2) ◽  
pp. 159
Author(s):  
Deepak Kumar Jaiswal ◽  
S.V.S. Raju ◽  
V. Manju Vani ◽  
Kamal Ravi Sharma
Keyword(s):  
Life History ◽  
Host Preference ◽  
Callosobruchus Chinensis ◽  
Pulse Beetle

scholarly journals Soybean Thrips (Thysanoptera: Thripidae) Harbor Highly Diverse Populations of Arthropod, Fungal and Plant Viruses

Viruses ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 1376
Author(s):  
Thanuja Thekke-Veetil ◽  
Doris Lagos-Kutz ◽  
Nancy K. McCoppin ◽  
Glen L. Hartman ◽  
Hye-Kyoung Ju ◽  
...  
Keyword(s):  
Virus Genome ◽  
Plant Viruses ◽  
The Novel ◽  
Diverse Populations ◽  
Vein Necrosis ◽  
Soybean Plants ◽  
Neohydatothrips Variabilis ◽  
Multiple Host Plant Species ◽  
Soybean Thrips ◽  
First Time

Soybean thrips (Neohydatothrips variabilis) are one of the most efficient vectors of soybean vein necrosis virus, which can cause severe necrotic symptoms in sensitive soybean plants. To determine which other viruses are associated with soybean thrips, the metatranscriptome of soybean thrips, collected by the Midwest Suction Trap Network during 2018, was analyzed. Contigs assembled from the data revealed a remarkable diversity of virus-like sequences. Of the 181 virus-like sequences identified, 155 were novel and associated primarily with taxa of arthropod-infecting viruses, but sequences similar to plant and fungus-infecting viruses were also identified. The novel viruses were predicted to have positive-sense RNA, negative-stranded RNA, double-stranded RNA, and single-stranded DNA genomes. The assembled sequences included 100 contigs that represented at least 95% coverage of a virus genome or genome segment. Sequences represented 12 previously described arthropod viruses including eight viruses reported from Hubei Province in China, and 12 plant virus sequences of which six have been previously described. The presence of diverse populations of plant viruses within soybean thrips suggests they feed on and acquire viruses from multiple host plant species that could be transmitted to soybean. Assessment of the virome of soybean thrips provides, for the first time, information on the diversity of viruses present in thrips.

Studies on Host Preference and its Influence on European Pine Shoot Moth Success and Development

1962 ◽  
Vol 94 (7) ◽  
pp. 690-706 ◽  
Author(s):  
Dean L. Haynes ◽  
James W. Butcher
Keyword(s):  
Life History ◽  
Host Preference ◽  
Christmas Tree ◽  
Control Methods ◽  
Christmas Trees ◽  
Lateral Buds ◽  
Nursery Stock ◽  
Intensively Managed ◽  
Newly Hatched Larvae ◽  
Insecticide Control

The European pine shoot moth (Rhyacionia buoliana (Schiff.)) attacks pine species grown in Michigan for forestry, Christmas tree, and ornamental purposes. Much research has been carried out on life history and direct insecticide control, (Butcher and Haynes 1960; Donley 1960) in efforts to minimize injury. As a result of these studies, practical control methods have been developed for intensively managed stands such as Christmas trees and nursery stock. While the need for a better understanding of shoot moth biology and ecology is generally accepted, the inability of foresters and entomologists to obtain satisfactory shoot moth control with low gallonage insecticide applications under forestry conditions has given impetus to studies on host preference and the influence of the host on shoot moth success and development. Such information, when available, might conceivably suggest planting and management steps that foresters could take in order to minimize attack and injury by this pest in the future. In Michigan, the European pine shoot moth overwinters as a partially grown larva and feeding is resumed about April 20. By late May or early June, pupation takes place in the bud area and adults emerge in about 2 weeks. Eggs are laid on the bark and needles, and hatching occurs within 10 to 15 days. Newly hatched larvae feed at the base of the current year's needles, later moving to the terminal and lateral buds where they remain until the following spring. Pitch blisters or “tents” formed as a result of feeding. in the bud area are useful indicators of shoot moth presence and activity.

Interrelationships of factors of social development are more complex than Life History Theory predicts

2019 ◽  
Vol 42 ◽  
Author(s):  
Boris Kotchoubey
Keyword(s):  
Life History ◽  
Social Development ◽  
Life History Theory ◽  
Strong Correlations ◽  
Behavioral Features

Abstract Life History Theory (LHT) predicts a monotonous relationship between affluence and the rate of innovations and strong correlations within a cluster of behavioral features. Although both predictions can be true in specific cases, they are incorrect in general. Therefore, the author's explanations may be right, but they do not prove LHT and cannot be generalized to other apparently similar processes.

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