Penn State University

Management of Spodoptera litura (F.) and S. exigua (Hubner) in Onion Mass Trapping and Timing of Interventions in Farmers’ Fields

This project focused on evaluating the effect of mass trapping of male S. Litura and S.exigua moths with sex pheromone trap catches and the effects on […]

Effect of Defoliation at Different Crop Ages on Yield of Onion

Researchers conducted a study to determine the effect of totally cutting off different numbers of leaves at different crop ages on bulb size and weight of […]

Molecular Probes to Distinguish Gall Midge Species

This project sought to identify molecular markers of two gall midget pests impacting hot peppers in Jamaica. A complex of at least 2 species of gall […]

South Asia Site in Bangladesh

IPM activities at the Bangladesh site were concentrated in four program areas during year 10, which was year 5 for Bangladesh. The first of these areas […]

Recta, Jean

Country of Origin:

Potential of Nuclear Polyhedrosis Virus (NPV) and Bacillus thuringiensis (Bt) for Spodoptera Control in Yellow Granex Onions (Microbial Control of Spodoptera in Onions)

Field trials in Bongabon, Nueva Ecija have shown that NPV, Bt, and NPV+Bt are more effective against Spodoptera larvae, than Karate insecticide application. Larval counts were […]

The Effectiveness of Trap Plants and Pheromone Traps for Spodoptera litura and Leucinodes orbonalis Management

The use of castor as trap plants for Spodoptera litura feeding on onions continued to be assessed during the onion-growing season. While castor plants effectively attracted […]

Field Evaluation of Damaged Fruit Removal as an Alternative to Insecticide Sprays for Control of Eggplant Shoot and Fruit Borer, Leucinodes orbonalis

In efforts to reduce labor costs attributed to the weekly removal of damages shoots and fruits of eggplant to minimize damage by and populations of Leucinodes […]

Movement of Arthropod Predators

The aim of the project is to quantify movements of predators between habitats in rice-onion cropping systems. Our hypothesis is that generalist predators can be found […]

Effectiveness of Selected Larval Parasitoids against Spodoptera litura, Maruca testulalis, and Leucinodes orbonalis

The field level of parasitism of Leucinodes orbonalis by the ichneumonid parasitoid, Trathala flavoorbitalis was monitored to gain insights into the parasitoid’s performance in the farmer’s […]