Keywords : Sesamia


Effect of planting methods and chemical control of stem borer Sesamia cretica Led. on some growth characters of two cultivars of Sorghum bicolor L.

A. H. Abd Al- Kaffor; T. M. Al-fahdawi

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2008, Volume 6, Issue 1, Pages 37-48

This study which was done using soil of loamy sand texture at Al-Husy location/Amiriya of Al-Anbar govern mate during fall of 2004, aimed to understand the cultivation methods effects (lines and furrows), two kinds of pesticides (cruiser and match) on the some development characters of two cultivars of sorghum (Inqath, Jiza-15). Results can be summarized as follows: Jiza-15 cultivar took less time to reach the 50% inflorescence and the physiological maturity stages, it got the highest mean for development characters of plant heights growth and dry matter yield, while Inqath cultivar recorded a highest mean of leaf area and gave a lowest percentage of infestation. Plants cultivated with furrows gave a highest significant mean of leaf area and dry matter yield, that method also recorded a lowest percentage of infestation. It also no effected significant of plant height, day number from sowing up to 50% flowering and day number from sowing up to physiological maturity stage. Treatment of control plant with in pesticide cruiser showed a lowest percentage of infestation and high significant in leaf area and dry matter yield as compared to match pesticide and control treatment. The interaction between varieties and cultivation methods, varieties and pesticides had a significant effects on some development characters (leaf area and dry matter yield), as Jiza-15 cultivar planted on furrows recorded a highest mean of dry matter yield (17.82 ton/ha), while Inqath cultivar treated with cruiser pesticide recorded a highest mean of leaf area (5118.67cm2). The interaction between varieties, planting methods and pesticides showed a highest mean of leaf area and dry matter yield, as Inqath cultivar treated with cruiser pesticide and planted on furrows recorded a highest mean of leaf area (5230.33 cm2).

The combiond Effect of Potassium fertilizer and some chemical insecticides against Corn stem Borer tow local Corn cultivars Sesamia cretica Led. (Lepidoptera : Phalaenidae)

B. H. A. Al-Solagh

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2007, Volume 5, Issue 2, Pages 316-329

Field studies were conducted experimental field in the college of agriculture Al-Anbar university to evaluate the combined effect of potassium fertilizer and some chemical insecticides against corn stem borer during spring and fall growing season of 2002.
The test included for (0, 20, 40, 60) Kg K / hac two insecticides (cruiser used as seed treatment at rate of 1400 ml/ 100 kg seeds and diazinon 60EC as spring of rate of 1.5 ml/ L) and two cultivars of corn (Buhooth 106, IPA 5012). Results can be summarized as follows:
IPA 5012 cultivars showed had caused a lowest percentage of infestation.
Potassium fertilizer had significant effect on reducing percentage of infestation when used at rate of 60 Kg K.hac-1.
The use of insecticide cruiser caused significant reduction infestation.
However the better results were optimum of when the combined effect of potassium and cruiser on the cultivars, IPA 5012 the peasbility of using there element in applied management system as corn borer was discussed.

The influence of the biological insecticide Agreen and two growth regulators, Cascade and Insegar, on corn stalk borer Sesamia cretica Led. (Phalaenidae: Lepidoptera)

A. A. Ali

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2007, Volume 5, Issue 1, Pages 267-278

Abstract Several studies were conducted to investigate the influence of Agreen (Bacillus thuringicasis agypti ) and the growth regulators, Cascade (Flufenoxuron) and Insegar (Fenoxycarb) on some biological aspects of corn stalk borer, Sesamia cretica Led. Results indicated no significant effect of Agreen on egg hatch. However an obvious reduction in hatching percentage was recorded for one day and four days old eggs treated with Cascade and Insegar.Hatching percentages were 64 and 69 % for one day and four days old eggs treated respectively with Cascade .The growth regulator Insegar resulted in 75 and 85 % of egg hatch for the two stages respectively .Results also showed that the susceptibility of first instar larvae was higher than that of the fourth instar larvae. The growth regulator Cascade showed highly influences on treated stages with percent of killing reached 81.5 and 82.1 % for 1st and 4th instar larvae respectively. A continous effects were also recorded on subsequent stages originated from individuals treated with Agreen and growth regulators.These include; delayed larval and pupal development, increased pupae and adults deformations.and reduced adults longevity and females fecundity. However, females originated from larvae treated with the growth regulators failed to lay any egg and died shortly after emergence. Results of this study will hopfully improve the management system for the control of corn stalk borer.

The influence of the biological insecticide Agreen and two growth regulators, Cascade and Insegar, on corn stalk borer Sesamia cretica Led. (Phalaenidae: Lepidoptera).

A. A. Ali

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2007, Volume 5, Issue 1, Pages 267-278

Abstract
Several studies were conducted to investigate the influence of Agreen (Bacillus thuringicasis agypti ) and the growth regulators, Cascade (Flufenoxuron) and Insegar (Fenoxycarb) on some biological aspects of corn stalk borer, Sesamia cretica Led. Results indicated no significant effect of Agreen on egg hatch. However an obvious reduction in hatching percentage was recorded for one day and four days old eggs treated with Cascade and Insegar.Hatching percentages were 64 and 69 % for one day and four days old eggs treated respectively with Cascade .The growth regulator Insegar resulted in 75 and 85 % of egg hatch for the two stages respectively .Results also showed that the susceptibility of first instar larvae was higher than that of the fourth instar larvae. The growth regulator Cascade showed highly influences on treated stages with percent of killing reached 81.5 and 82.1 % for 1st and 4th instar larvae respectively. A continous effects were also recorded on subsequent stages originated from individuals treated with Agreen and growth regulators.These include; delayed larval and pupal development, increased pupae and adults deformations.and reduced adults longevity and females fecundity. However, females originated from larvae treated with the growth regulators failed to lay any egg and died shortly after emergence. Results of this study will hopfully improve the management system for the control of corn stalk borer.

The influence of the biological insecticide Agreen and two growth regulators, Cascade and Insegar, on corn stalk borer Sesamia cretica Led. (Phalaenidae: Lepidoptera)

A. A. Ali

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2007, Volume 5, Issue 1, Pages 267-278

Several studies were conducted to investigate the influence of Agreen (Bacillus thuringicasis agypti ) and the growth regulators, Cascade (Flufenoxuron) and Insegar (Fenoxycarb) on some biological aspects of corn stalk borer, Sesamia cretica Led. Results indicated no significant effect of Agreen on egg hatch. However an obvious reduction in hatching percentage was recorded for one day and four days old eggs treated with Cascade and Insegar.Hatching percentages were 64 and 69 % for one day and four days old eggs treated respectively with Cascade .The growth regulator Insegar resulted in 75 and 85 % of egg hatch for the two stages respectively .Results also showed that the susceptibility of first instar larvae was higher than that of the fourth instar larvae. The growth regulator Cascade showed highly influences on treated stages with percent of killing reached 81.5 and 82.1 % for 1st and 4th instar larvae respectively. A continous effects were also recorded on subsequent stages originated from individuals treated with Agreen and growth regulators.These include; delayed larval and pupal development, increased pupae and adults deformations.and reduced adults longevity and females fecundity. However, females originated from larvae treated with the growth regulators failed to lay any egg and died shortly after emergence. Results of this study will hopfully improve the management system for the control of corn stalk borer.