scholarly journals Differential Probing Behavior of Blissus insularis (Hemiptera: Blissidae) on Resistant and Susceptible St. Augustinegrasses

2015 ◽  
Vol 108 (2) ◽  
pp. 780-788 ◽  
Author(s):  
M. Rangasamy ◽  
H. J. McAuslane ◽  
E. A. Backus ◽  
R. H. Cherry
Keyword(s):  
Probing Behavior ◽  
Blissus Insularis

scholarly journals UV reflective properties of magnesium oxide increase attraction and probing behavior of Asian citrus psyllids (Hemiptera: Liviidae)

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Justin George ◽  
Thomson M. Paris ◽  
Sandra A. Allan ◽  
Stephen L. Lapointe ◽  
Lukasz L. Stelinski
Keyword(s):  
Magnesium Oxide ◽  
Probing Behavior

scholarly journals Relationships Among the Feeding Behaviors of a Mirid Bug on Cotton Leaves of Different Ages and Plant Biochemical Substances

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Haiyan Song ◽  
Zhaoke Dong ◽  
Lili Li ◽  
Zengbin Lu ◽  
Chao Li ◽  
...  
Keyword(s):  
Negative Impact ◽  
Leaf Age ◽  
Leaf Traits ◽  
Cotton Leaf ◽  
Young Plant ◽  
Feeding Behaviors ◽  
Probing Behavior ◽  
Negative Effect ◽  
Mirid Bug ◽  
The Relationship

Abstract Apolygus lucorum (Meyer-Dür) (Hemiptera: Miridae) tends to feed on young plant tissues. To explore the relationship between stylet probing behaviors of adult A. lucorum and conditions of cotton leaves, we conducted an experiment using electropenetrography (EPG). Behaviors were recorded on four cotton varieties, in relation to thickness and biochemical traits of differently-aged leaves. Cotton leaf age had a significant effect on the probing behavior of A. lucorum but cotton variety did not. One-day-old leaves of A. lucorum received the highest mean number of stylet probes (penetrations) per insect, and longest mean durations per insect of combined stylet probing or its components, cell rupture and ingestion behaviors. All of the leaf traits (thickness and biochemical substances) were similar among these four cotton varieties. Leaf thickness had a significantly negative effect on the same four variables above. Gossypol and tannin also had a negative impact on combined probing duration. Redundancy analysis showed that the four EPG variables were closely related to nutrient substances (amino acids, sugar, and water) while they had the opposite relationship with plant defense substances (gossypol and tannin). On cotton in the seedling stages, A. lucorum fed more readily on the youngest, thinnest leaves in our no-choice EPG experiments. Nutrients and chemical resistance substances determined the probing duration of A. lucorum. Our findings can contribute to better understanding of patterns of feeding and host consumption by A. lucorum, ultimately improving cotton resistance to A. lucorum.

scholarly journals Variation in southern chinch bug ( Blissus insularis ) survival and damage on St. Augustinegrass germplasm

itsrj ◽  
2021 ◽  
Author(s):  
Rocio Laat ◽  
Adam G. Dale ◽  
Consuelo Arellano ◽  
Susana R. Milla‐Lewis
Keyword(s):  
Chinch Bug ◽  
Blissus Insularis ◽  
Southern Chinch Bug

scholarly journals Probing behavior of Dysmicoccus brevipes mealybug in pineapple plants1

2016 ◽  
Vol 46 (4) ◽  
pp. 458-463
Author(s):  
Lenira Viana Costa Santa-Cecília ◽  
◽  
Ernesto Prado ◽  
Brígida Souza ◽  
Keyword(s):  
Insect Vector ◽  
Recording Time ◽  
Defense Strategies ◽  
Phenolic Contents ◽  
Probing Behavior ◽  
Epg Technique ◽  
Dysmicoccus Brevipes ◽  
Mealybug Wilt ◽  
Pineapple Mealybug Wilt ◽  
Pineapple Mealybug

ABSTRACT Differences in susceptibility to viruses in plants may be partially explained by the insect vector probing behavior and by the presence of phenolic compounds, which are often associated with defense strategies. This study aimed at detecting barriers that may difficult the probing activity of the Dysmicoccus brevipes (Pseudococcidae) pineapple mealybug, a vector of the pineapple mealybug wilt-associated virus, as well as evaluating the phenolic content of plants, in order to verify any possible relationship with the probing behavior, by using the electrical penetration graphs (EPG) technique. Seedlings of 'Smooth Cayenne' and 'Pérola' pineapple cultivars were used in the experiments. Only 28 % and 21 % of the mealybugs reached the phloem of the 'Smooth Cayenne' and 'Pérola' cultivars, respectively, over 16 h of recording, with an average of 9 h to reach the phloem vessels. The xylem phase was extended in both cultivars and represented approximately 31 % ('Smooth Cayenne') and 44 % ('Pérola') of the recording time. The phenolic contents of both cultivars were similar.

Endosymbionts Differentially Alter Exploratory Probing Behavior of a Nonpersistent Plant Virus Vector

2017 ◽  
Vol 76 (2) ◽  
pp. 453-458 ◽  
Author(s):  
G. Angelella ◽  
V. Nalam ◽  
P. Nachappa ◽  
J. White ◽  
I. Kaplan
Keyword(s):  
Plant Virus ◽  
Virus Vector ◽  
Probing Behavior ◽  
Plant Virus Vector

scholarly journals Probing Behavior of Diaphorina citri (Hemiptera: Liviidae) on Valencia Orange Influenced by Sex, Color, and Size

2020 ◽  
Vol 20 (2) ◽  
Author(s):  
Timothy A Ebert ◽  
Michael E Rogers
Keyword(s):  
Body Size ◽  
Model Performance ◽  
Diaphorina Citri ◽  
Probing Behavior ◽  
Valencia Orange ◽  
Improve Model ◽  
Candidatus Liberibacter ◽  
Citrus Huanglongbing ◽  
Liberibacter Asiaticus ◽  
Improve Model Performance

Abstract Candidatus Liberibacter asiaticus Jagoueix, Bové, and Garnier (Rhizobiales: Rhizobiaceae) is transmitted by the psyllid Diaphorina citri Kuwayama and putatively causes Huanglongbing disease in citrus. Huanglongbing has reduced yields by 68% relative to pre-disease yields in Florida. Disease management is partly through vector control. Understanding vector biology is essential in this endeavor. Our goal was to document differences in probing behavior linked to sex. Based on both a literature review and our results, we conclude that there is either no effect of sex or that identifying such an effect requires a sample size at least four times larger than standard methodologies. Including both color and sex in statistical models did not improve model performance. Both sex and color are correlated with body size, and body size has not been considered in previous studies on sex in D. citri in terms of probing behavior. An effect of body size was found wherein larger psyllids took longer to reach ingestion behaviors and larger individuals spent more time-ingesting phloem, but these relationships explained little of the variability in these data. We suggest that the effects of sex can be ignored when running EPG experiments on healthy psyllids.

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