scholarly journals A note on the chronic effects of tall oil on the variegetd cutworm, Peridroma saucia [Lepidoptera : Noctuidae]

2005 ◽  
Vol 73 (3) ◽  
pp. 119-121 ◽  
Author(s):  
Y.S. Xie ◽  
M.B. Isman

Chronic effects of tall oil, a by-product of the kraft pulping process of softwoods, on the variegated cutworm, Peridroma saucia, were assessed via incorporation into artificial diet. At a dietary concentration of 1.5% fresh weight, depitched tall oil (DTO) significantly reduced P. saucia weight, prolonged developmental time, and increased mortality in different stages. A significant linear relationship was found between dietary concentration of DTO and ail developmental parameters tested. A diet-shift experiment clearly demonstrated that the inhibitory effect of DTO to P. saucia is persistent and not readily alleviated by transferring larvae to untreated diet. DTO may be a useful natural agent for pest management.

1992 ◽  
Vol 124 (5) ◽  
pp. 861-869 ◽  
Author(s):  
Yongshou Xie ◽  
Murray B. Isman

AbstractCrude tall oil and two of its derivatives were assessed for antifeedant and growth inhibitory effects, via incorporation into an artificial diet, in the variegated cutworm (Peridroma saucia Hübner). The substances tested are both toxic to neonate P. saucia and inhibitory to larval growth. The dietary LC50 (lethal concentration for 50% mortality) values are 4.3, 4.7, and 5.3% fresh weight for depitched tall oil (DTO), crude tall oil (CTO), and tall oil pitch (TOP), respectively. These materials significantly reduced growth, feeding, and dietary utilization by first-, second-, third-, and fourth-instar larvae in chronic larval growth bioassays, choice and no-choice feeding tests, and nutritional experiments. The EC50s (effective concentration to inhibit growth by 50% relative to controls) of DTO, CTO, and TOP were 1.4, 2.0, and ≥2.4%, respectively, when first-instar larvae fed on treated diets for 10 days. DTO significantly reduced both growth and consumption rates with corresponding reduction in the efficiency of conversion of food (i.e. nutritional efficiency), suggesting that both antifeedant and toxic effects are involved in larval growth inhibition. DTO and CTO are consistently more biologically active than TOP. Our results suggest that an environmentally sound, low cost natural pest control agent may be developed based on tall oil.


BioResources ◽  
2006 ◽  
Vol 1 (1) ◽  
pp. 150-171 ◽  

Effective utilization of byproducts can affect the profitability of kraft pulping to produce cellulosic fibers from wood. This review considers opportunities to use tall oil components, obtained from kraft pulping, as a source of raw material for biodiesel fuel, or as a source of additives for petrodiesel. Considerable progress has been achieved with respect to converting vegetable oils to diesel fuel, and some of what has been learned appears to have potential application for processing of wood-derived fatty acids and related compounds. Alkaline – catalyzed trans esterification strategies, while seemingly well adapted for relatively pure vegetable oil source materials, may not be the best fit for the processing of tall oil fractions. The promising strategies to consider include acid – catalyzed esterification, enzymatic processes, hydrogenation, and the use of supercritical methanol.


2008 ◽  
pp. 4038-4041
Author(s):  
John B. Heppner ◽  
John B. Heppner ◽  
John L. Capinera ◽  
Jamie Ellis ◽  
Andrey N. Alekseev ◽  
...  

1974 ◽  
Vol 106 (1) ◽  
pp. 73-77
Author(s):  
H. B. Specht

AbstractTwice as many larvae of the dark-sided cutworm, Euxoa messoria Harr., were found in rye fall-seeded tobacco field plots than in winter-fallowed tobacco field plots. There were corresponding differences in numbers of injured tobacco plants. Cutworm aggregations were more prominent in the winter rye than in the winter fallowed area of the tobacco field with low populations of dark-sided cutworms.Larvae of the variegated cutworm, Peridroma saucia Hbn., appeared 2 to 4 weeks later than dark-sided cutworm larvae and winter cultural methods had little effect on their numbers.


2009 ◽  
Vol 12 (2) ◽  
pp. 71-77 ◽  
Author(s):  
Kyung San Choi ◽  
Jum Rae Cho ◽  
Jeong Heub Song ◽  
Dong-Soon Kim ◽  
Kyung Saeng Boo

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