Poultry mite infestation.

The effects of various seed moisture contents in hulless (cv. Terra) and hulled oats (cv. Random) on susceptibility to mite infestation and on mycofloral growth and germination loss were studied at weekly intervals. Fat acidity values were determined for Terra oats only after 4 wk of storage. Moisture content-relative humidity adsorption and desorption curves were determined for Terra at 22 °C and at relative humidities of 35–100%. Terra oats, which had a higher level of Penicillium infection at 90–100% RH than Random oats, lost viability more rapidly than Random. Fat acidity values of Terra increased rapidly from 35 mg KOH/100 g of seed to 87–118 mg KOH/100 g of seed, only when seeds were stored at 90–100% RH. Terra offered a more favorable substrate for the multiplication of the mites Tyrophagus putrescentiae, Acarus farris, and Lepidoglyphus destructor than did Random. With the exception of susceptibility to mite infestation, safe storage criteria are similar for hulled and hulless oats at usual moisture contents.

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Prevalence of the Tick, Ixodes pacificus, on Western Fence Lizards, Sceloporus occidentalis: Trends by Gender, Size, Season, Site, and Mite Infestation

Journal of Herpetology ◽

10.2307/1565257 ◽

2000 ◽

Vol 34 (1) ◽

pp. 160 ◽

Cited By ~ 17

Author(s):

Jos. J. Schall ◽

Holly R. Prendeville ◽

Kathryn A. Hanley

Keyword(s):

Mite Infestation ◽

Ixodes Pacificus ◽

Sceloporus Occidentalis

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Varroa jacobsoni infestation of adult Africanized and Italian honey bees (Apis mellifera) in mixed colonies in Brazil

Genetics and Molecular Biology ◽

10.1590/s1415-47571999000300006 ◽

1999 ◽

Vol 22 (3) ◽

pp. 321-323 ◽

Cited By ~ 12

Author(s):

Geraldo Moretto ◽

Leonidas João de Mello Jr.

Keyword(s):

Apis Mellifera ◽

Honey Bee ◽

Honey Bees ◽

Mite Infestation ◽

Varroa Jacobsoni ◽

Africanized Honey Bees ◽

African Honey Bees ◽

Africanized Bees ◽

Bee Colonies ◽

Different Levels

Different levels of infestation with the mite Varroa jacobsoni have been observed in the various Apis mellifera races. In general, bees of European races are more susceptible to the mite than African honey bees and their hybrids. In Brazil honey bee colonies are not treated against the mite, though apparently both climate and bee race influence the mite infestation. Six mixed colonies were made with Italian and Africanized honey bees. The percentage infestation by this parasite was found to be significantly lower in adult Africanized (1.69 ± 0.44) than Italian bees (2.79 ± 0.65). This ratio was similar to that found in Mexico, even though the Africanized bees tested there had not been in contact with varroa, compared to more than 20 years of the coexistence in Brazil. However, mean mite infestation in Brazil on both kinds of bees was only about a third of that found in Mexico.

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