Boron and Coumaphos Residues in Hive Materials Following Treatments for the Control of Aethina tumida Murray.

In the search of alternatives for controlling Aethina tumida Murray, we recently proposed the BAA trap which uses boric Fuel Delivery:Air Intake acid and an attractant which mimics the process of fermentation caused by Kodamaea ohmeri in the hive.This yeast is excreted in the feces of A.tumida causing the fermentation of pollen and honey of infeste

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Effect of bell size on sound characteristics of cymbals

Cymbals are percussion instruments that vibrate and radiate sounds when hit with a stick.A bell is the raised section in the middle of the cymbal and its size produces different sounds.In this study, we investigate the effect of bell size on the sound characteristics of cymbals.The radiated sounds and vibrations for cymbals with two different bell

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Canada thistle phenology in broadbean canopy

Soine of the developmental stages of Canada thistle - Cirsium arvense (L.) Scop.(I.emergence and early growth, II.shooting, II.budding, IV.flowering, V.fructification, VI.shedding of fruits) on the background of development stages of broad-bean, weeded by herbicides and without that weed-killing substances, were presented in Other Filter Parts the

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