Some aspects of the action of diflubenzuron and trifluron on food consumption, growth rate and food utilization by Spodoptera littoralis larvae

Radwan, H. S. A.; Assal, O. M.; Abo-Elghar, G.E.; Riskallah, M. R.; Ahmed, Maruf

doi:10.1016/0022-1910(86)90128-9

Cited by 14 publications

(7 citation statements)

References 19 publications

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“…The vacuolation, elongation and disintegration of the epithelial cells, as well as the disappearance of muscularis and regenerative cells, detachment of the basement membranes, ect … had been observed in the mid gut of S. exigua by the action of diflubenzuron, malathion and cypermethrin (Younes et al, 2000). In addition, similar or other histopathological changes had been reported for some CSIs on different insects (Ker, 1977;Mitsui et al, 1980;Radwan et al, 1986).…”

Section: ) the Mid Gutsupporting

confidence: 80%

Ultrastuctural changes in certain nymphal tissues of schistocerca gregaria (orthoptera: acrididae) by some chitin synthesis inhibitors.

Bakr

Ghoneim

Al-Dali

et al. 2008

Egyptian Academic Journal of Biological Sciences. A, Entomology

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Section: ) the Mid Gutsupporting

confidence: 80%

Ultrastuctural changes in certain nymphal tissues of schistocerca gregaria (orthoptera: acrididae) by some chitin synthesis inhibitors.

Bakr

Ghoneim

Al-Dali

et al. 2008

Egyptian Academic Journal of Biological Sciences. A, Entomology

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“…They suggested that the treatment might have produced a nutritional unbalance in food that subsequently increased the coefficient of food utilization. Also, Radwan et al (1986) observed an increase in the efficiency of conversion of ingested food in the 4 th instar of S. littoralis treated with diflubenzuron or trifluron. Slama, K. (1995): Hormonal status of RH-5849 and RH-5992 synthetic ecdysone agonists (ecdysoids) examined on several standard bioassays for ecdysteroids.…”

Section: Effect Of Tested Igrs On Growth Ratementioning

confidence: 82%

THE BIOLOGICAL ACTIVITY OF SOME INSECT GROWTH REGULATORS AGAINST THE COTTON LEAFWORM Spodoptera littoralis (BIOSD.)

Nasouri

Badawy

Barakat

2012

Journal of Plant Protection and Pathology

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The present study was undertaken to evaluate the initial and residual toxicity of Virtu 80% WP (chromafenozide), Nomolt 15% SC (teflubenzuron) and Match 5% EC (lufenuron), as well as their effects on food consumption and growth rate of the 4 th , 5 th and 6 th larval instars of cotton leafworm using field-laboratory experiment. The tested IGRs were sprayed on potato plants in the field and their leaves were collected at four periods to conduct laboratory tests. Larvae were fed on treated leaves for two days and then on untreated leaves for another three days in each period. Data indicated that the tested IGR compounds were high efficiency against the fourth and fifth instars at the first period and gave long residual activity. On the other hand, residual activity of Virtu was more effective than the two benzoylphenyl urea insecticides against the sixth larval instar. The same trend of efficacy of the tested IGRs on the food consumption of the fourth and fifth larval instars was also found in the sixth larval instar of S. littoralis. Mean of consumption indexes of all intervals for sixth larval instar was 0.460, 1.096 and 1.219 for Virtu, Nomolt and Match, respectively, compared to 1.131 in check treatment. Also, it was found that the tested IGRs were able to suppress the growth rate of tested larval instars to different degrees in comparison to that of untreated control. Data indicated that feeding the different larval instars on treated potato leaves with Virtu compound resulted in high reduction in food consumption and growth rate. On the contrary, the both benzoylurea compounds; Nomolt and Match caused slight reduction in consumption index and growth rate.

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“…SUNDARAMURTHY (1977) reported that when final instar larvae of Spodoptera litura (F.) were fed on leaves of castor (Ricinus communis) that had been treated with various concentration (up to 0.01 Yo) of diflubenzuron, resulted in reduction in food consumption and weight gained by the larvae. RADWAN et al (1986) reported that fourth instar larvae of the noctuid Spodoptera littoralis were fed on castor bean leaves treated with the chitin biosynthesis disruption agents diflubenzuron and its analogue SIR-8514 (Triflumuron). There was a reduction in the consumption of food into body substance.…”

Section: Larval Durationmentioning

confidence: 99%

Influence of chitin biosynthesis inhibitor diamino‐furyl‐s‐triazine on larval food consumption and growth of Pericallia ricini F. (Lep., Arctiidae)

Srivastava¹,

Srivastava²

1990

J Applied Entomology

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Reduction in food consum tion, weight loss during exposure period and reduction in growth rate occurs, when third and figh instar larvae of Pericallia rin'ni Fabr. were fed on castor (Ricinws communis) leaves dipped in different concentrations of diamino-furyl-s-triazine. Maximum reduction in total food consumption noted was 63.40 % at 0.01 % level in third instar larval feeding treatment.During the exposure period, larvae lost their weight (maximum by 36.46% in third instar larvae). Maximum reduction in larval growth was also recorded in third instar larvae, which was 63.08 % at 0.01 YO. With the increase of concentration, the reduction in food consumption and growth rate was increased considerably. The chemical was more active on third instar than fifth instar larvae. Larval duration of treated individual was also increased. But'the larval duration of treated larvae was increased only in the instar in which it was treated.

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Some aspects of the action of diflubenzuron and trifluron on food consumption, growth rate and food utilization by Spodoptera littoralis larvae

Cited by 14 publications

References 19 publications

Ultrastuctural changes in certain nymphal tissues of schistocerca gregaria (orthoptera: acrididae) by some chitin synthesis inhibitors.

Ultrastuctural changes in certain nymphal tissues of schistocerca gregaria (orthoptera: acrididae) by some chitin synthesis inhibitors.

THE BIOLOGICAL ACTIVITY OF SOME INSECT GROWTH REGULATORS AGAINST THE COTTON LEAFWORM Spodoptera littoralis (BIOSD.)

Influence of chitin biosynthesis inhibitor diamino‐furyl‐s‐triazine on larval food consumption and growth of Pericallia ricini F. (Lep., Arctiidae)

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