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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The high-pressure infestation of Helicoverpa zea (L.) in maize (Zea mays L.) in Ecuador led to evaluate the antifeedant effect and laboratory mortality of third instar larvae treated with water extracts from leaves of Schinus molle (L.) and Artemisia absinthium (L.) at 100 and 50% of the maximum concentrations obtained, which were applied alone and mixed with Bacillus thuringiensis (Berliner) var. kurstaki (Btk). A field trial was also conducted. In the laboratory, the S. molle extract had an intermediate (45 to 49%) antifeeding effect, while the A. absinthium extract had no effect. At 15 days after application (DAA), the extracts alone or in mixture with Btk caused low mortality (S. molle: 20 to 28%; A. absinthium: 24 to 40%; and in mixture with Btk 33 and 28%, respectively). On that evaluation, the combined application of S. molle and A. absinthium extracts with Btk did not increase the larvicidal effect of the bacteria. The water extract from S. molle applied alone or mixed with Btk 217 Guevara et al. Extracts of Schinus molle and Artemisia absinthium against Helicoverpa zea on fresh ear corn significantly decreased (P ≤ 0.05) the number of larvae at harvest, but the damage caused by those surviving larvae did not differ from the untreated control. The insecticidal effects obtained represent new alternatives for the control of Helicoverpa zea in maize.

EXTRACTS OF Schinus molle AND Artemisia absinthium AGAINST Helicoverpa zea ON FRESH EAR CORN IN ECUADOR