Peas (Pisum sativum) are toxic to some stored-product insects. The repellent effect of fractions of pea seed to stored-product insects was evaluated in multiple-choice tests in which wheat kernels were dusted with fractions rich in either protein, fibre or starch at 0.001 to 10% (wt:wt). There was a negative correlation between pea protein concentration and the number of adults found in grain f...

Red flour beetles, Tribolium castaneum (Herbst), and confused flour beetles, Tribolium confusum (DuVal), were exposed for 8-72 h to diatomaceous earth (Protect-It) at 22, 27, and 32 degrees C and 40, 57, and 75% RH (9 combinations). Insects were exposed to the diatomaceous earth at 0.5 mg/cm2 on filter paper inside plastic petri dishes. After exposure, beetles were held for 1 wk without food at...

The objective of this study was to evaluate the phytochemical, antimicrobial, and insecticidal properties tannins derived from Cydonia oblonga fruit.Qualitative quantitative methods were used for determination phytochemicals fruits. fruit extracted using solvents salts, their antimicrobial activity against S. aureus ATCC 25923 E.coli 25322 C.albicans investigated.The lethal effect extract evalu...

essential oil extracted from the leaves of myrtle, myrtus communis l. (myrtaceae)was tested in vitro for volatile toxicity against two stored-product insects (tribolium confusum and callosobruchus maculatus). the chemical composition of the plant oil was examined by gas chromatography-mass spectrometry (gc-ms). the major oil components were α-pinene (10.4%), α- terpineol (10.1%), linalool (9.0%...

The "bunga bangkai" is a compound interest with spadix and solitary inflorescences. Amorphophallus gigas one of several species which endemic to Sumatra. One the original habitats for A. found in North Padang Lawas bloom almost all year round. This study aimed observe phenology Regency, precisely Bargottopong Village was on rubber agroforestry land communities. Observations were made every 3 da...