English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

This study was carried out under constant conditions at 30±°C and 60± 5% RH on cowpea beetle, Callosobruchus maculatus (F.) treated with four volatile plant oils (clove, thyme, marjoram and rosemary), aloe aqueous extract and spinosad. The obtained data are summarized as follows: The highest fecundity (63.67 eggs) was recorded in cowpea seeds treated with thyme oil at 0.5% and the lowest one (2.67 eggs) at 2.0% on rosemary oil, compared with (135.67 eggs) in the control. The highest fertility (86.25%) was occurred at 1% of thyme oil, but the lowest one (zero%) was recorded in case of 2% marjoram oil as compared with control (68.38%). There were no larval penetrations (zero) into seeds with all volatile oils at different concentrations except (7.73%) at 0.5% of thyme oil as compared with 11.19% in control. Moreover, the highest fecundity (38.67 eggs) was recorded at 0.5% and decreased to (11.33 eggs) at 2%, the highest percentage of larval penetration (6.22 %) was recorded at 0.5% and decreased to 0.0% in the concentrations of 1.5% and 2%, compared with (11.19%) in control, when treated with aloe aqueous extract. The percentage of eggs reduction was increased by increasing the concentrations used. The highest percentage of reduction (94.25 %) was recorded at the concentration of 2%, while the lowest one (71.09%) was recorded at 0.5%. The highest percentage of weight loss (3.39%) was recorded at 0.5% of clove oil, and the lowest percent (1.15%) was found at 2% of aloe aqueous extract. The highest feeding deterrence index (FDI) was 36.83% as concerns aloe aqueous extract and the lowest one (19.65%) was recorded with clove oil. Adult mortality percentage increased by increasing the concentration of the volatile plant oils used. The highest percentage of mortality (72.22%) was recorded at 2% and 3% rosemary oil after 72 hr. from treatment and 3% of both clove and thyme oils, while the lowest percent (2.78%) was recorded at 0.5% after 24 hr., of clove oil. The highest percentage of mortality (52.78%) was recorded on cowpea seeds treated aloe aqueous extract at 3% after 72 hr., of treatment, while the lowest one (13.89%) was obtained at 0.5% after 48 hr. The highest mortality of spinosad was 80.0% at 70 ppm after 72 hr., whereas the lowest percent (1.67%) was recorded at 40 and 50 ppm after 24 hr. post-treatment, compared with 33.33% at 1 ppm after 24 hr. exposure to malathion (1% powder) and the highest one of 100.00% which was recorded at 8 ppm after 72 hr., exposure period.

BIOLOGICAL AND LETHAL EFFECTS OF SOME VOLATILE PLANT OILS, ALOE AQUEOUS EXTRACT AND SPINOSAD ON COWPEA BEETLE, Callosobruchus maculatus (F.)