Limits...
A novel bioassay to evaluate the potential of Beauveria bassiana strain NI8 and the insect growth regulator novaluron against Lygus lineolaris on a non-autoclaved solid artificial diet.

Portilla M, Snodgrass G, Luttrell R, Jaronski S - J. Insect Sci. (2014)

Bottom Line: It was prepared in one step by blending the ingredients in boiling water.Fourth and fifth instars and adults of L. lineolaris were more susceptible than second and third instars to infection by B. bassiana, whereas second, third, and fourth instars had higher mortality than fifth instars 10 days after exposure to novaluron.No effects on longevity were observed in adults treated with novaluron when compared with the control, but longevity was significantly different from that of adults exposed to B. bassiana.

View Article: PubMed Central - PubMed

Affiliation: U.S. Department of Agriculture, Agricultural Research Service, Stoneville, MS 38732 maribel.portilla@ars.usda.gov.

No MeSH data available.


Related in: MedlinePlus

Survival of late stages of Lygus lineolaris (fed solid artificial diet) after exposure to the entomopathogenic fungus Beauveria bassiana (white triangles) and the insect growth regulator novaluron (white circles). Controls (black circles) were sprayed with water. High quality figures are available online.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4222315&req=5

f02_01: Survival of late stages of Lygus lineolaris (fed solid artificial diet) after exposure to the entomopathogenic fungus Beauveria bassiana (white triangles) and the insect growth regulator novaluron (white circles). Controls (black circles) were sprayed with water. High quality figures are available online.

Mentions: Survival rates for each combination of treatments and L. lineolaris stages are presented in Figures 1 and 2. The log-rank and Wilcoxon tests for homogeneity indicated significant differences between treatments in each L. lineolaris stage when compared with the water control (Table 3). Figure 1 showed that 2-I were more likely to survive after fungus application, whereas 5-I were more likely to survive after novaluron application (Figure 2). Table 4 showed a longer mean longevity in the water control for all L. lineolaris stages except for adults, where no significant differences were found, when compared with novaluron. No significant differences in longevity were observed between novaluron and B. bassiana treatments for 3-I, 4-I, and 5-I (Table 4). Growth inhibition was determined by percentage of molt, and this percentage was highest in all L. lineolaris immature stages sprayed with water (control), followed by the insects sprayed with B. bassiana (Table 4). Percentage of molt was highly reduced in all immature stages treated with novaluron (Table 4).


A novel bioassay to evaluate the potential of Beauveria bassiana strain NI8 and the insect growth regulator novaluron against Lygus lineolaris on a non-autoclaved solid artificial diet.

Portilla M, Snodgrass G, Luttrell R, Jaronski S - J. Insect Sci. (2014)

Survival of late stages of Lygus lineolaris (fed solid artificial diet) after exposure to the entomopathogenic fungus Beauveria bassiana (white triangles) and the insect growth regulator novaluron (white circles). Controls (black circles) were sprayed with water. High quality figures are available online.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4222315&req=5

f02_01: Survival of late stages of Lygus lineolaris (fed solid artificial diet) after exposure to the entomopathogenic fungus Beauveria bassiana (white triangles) and the insect growth regulator novaluron (white circles). Controls (black circles) were sprayed with water. High quality figures are available online.
Mentions: Survival rates for each combination of treatments and L. lineolaris stages are presented in Figures 1 and 2. The log-rank and Wilcoxon tests for homogeneity indicated significant differences between treatments in each L. lineolaris stage when compared with the water control (Table 3). Figure 1 showed that 2-I were more likely to survive after fungus application, whereas 5-I were more likely to survive after novaluron application (Figure 2). Table 4 showed a longer mean longevity in the water control for all L. lineolaris stages except for adults, where no significant differences were found, when compared with novaluron. No significant differences in longevity were observed between novaluron and B. bassiana treatments for 3-I, 4-I, and 5-I (Table 4). Growth inhibition was determined by percentage of molt, and this percentage was highest in all L. lineolaris immature stages sprayed with water (control), followed by the insects sprayed with B. bassiana (Table 4). Percentage of molt was highly reduced in all immature stages treated with novaluron (Table 4).

Bottom Line: It was prepared in one step by blending the ingredients in boiling water.Fourth and fifth instars and adults of L. lineolaris were more susceptible than second and third instars to infection by B. bassiana, whereas second, third, and fourth instars had higher mortality than fifth instars 10 days after exposure to novaluron.No effects on longevity were observed in adults treated with novaluron when compared with the control, but longevity was significantly different from that of adults exposed to B. bassiana.

View Article: PubMed Central - PubMed

Affiliation: U.S. Department of Agriculture, Agricultural Research Service, Stoneville, MS 38732 maribel.portilla@ars.usda.gov.

No MeSH data available.


Related in: MedlinePlus