Resistance of Upland NERICAs and Parents to Rice Weevil and Angoumois Grain Moth

Rice Water Weevil and Angoumois Grain Moth Control Following Fall/Winter Storage of Icon 6.2FS-Treated Cocodrie and XL8 Seed

Efficacy of Pheromone on Capturing Angoumois Grain Moth (Sitotroga Cerealella) in Stored Rice (Oryza Sativa L.) Grain

An experiment on the efficacy of pheromone on capturing angoumois grain moth, Sitotroga cerealella (Olivier) was conducted in the laboratory of the Department of Entomology, Sher-e-Bangla Agricultural University, Bangladesh, using rice variety BR11. Pheromone (X-lure) trap was used as a treatment and data were recorded at different days and distances. The experiment was laid out in a Completely...

Comparison of Response to Nitrogen between Upland NERICAs and ITA (Oryza sativa) Rice Varieties

Average yields of upland rice are the lowest in Uganda, and most of the productivity gains attributed to improved varieties are related to increased area of production from clearing virgin lands for rice production. In a bid to optimize productivity, we compared the effect of four nitrogen fertilizer treatments: 0, 40, 80 and 120 kgN/ha and two variety types (ITAs (Oryza sativa) and NERICAs (Ne...

PHYSIOLOGICAL ECOLOGY Development and Survivorship of Immature Angoumois Grain Moth (Lepidoptera: Gelechiidae) on Stored Corn

Life history of immature Angoumois grain moths, Sitotroga cerealella (Olivier), was studied on dent corn (Pioneer 3320) at 10, 15, 20, 25, 30, 35, and 40 C and at 43, 53Ð61, 75Ð76, and 82Ð87% RH under laboratory conditions. At 10 and 40 C, none of the stages survived at any relative humidity. Temperaturewas themain factor affecting egg incubationperiod, larval-pupal development time, and egg an...

Insecticidal Effects of Peppermint and Black Pepper Essential Oils against Rice Weevil, Sitophilus oryzae L. and Rice Moth, Corcyra cephalonica (St.)

 Background: The rice weevil, Sitophilus oryzae and rice moth, Corcyra cephalonica are major and cosmopolitan insect. Adults of S. oryzae (male and female) and both larvae are insatiable feeders on a great variety of grains. Objective: This study was conducted to estimate the insecticidal effect of essential oils from peppermint, Mentha piperita L. and black pepper, Piper nigrum L. ag...