Ticks and tick-borne disease kill livestock by causing severe skin damage, which is a byproduct of the manufacturing industry. In Tanzania, conventional acaricidal tick control is both environmentally and economically costly. Spraying 0.2 mL/tick of 1x106,1x107, 1x108 conidia/mL of Aspergillus oryzae and control (water and 0.5 percent triton x-100) in 35.5oC and 85 percent RH against three species of ticks (Acari: Ioxididae); Rhipicephalus appendiculatus, Hyalomma anatolicum, and Amblyomma gemma) The results showed that at 1x108 conidial/mL, A. oryzae caused high mortality rates in H. anatolicum, R. appendiculatus, and A. gemma, averaging 88.2 percent, 72.5 percent, and 67.9 percent within 6.250.75, 7.550.59 days, and 11.90.65 days, respectively, whereas in control, the highest mortality rate reached 12.5 percent, 11.0 percent, and 6.5 percent after 22.50 It was also discovered that 1x108 conidial/mL of A. oryzae lowered oviposition rate in A. gemma, resulting in 94.810.74 eggs/female compared to 354.1542.65 eggs/female in control. H. anatolicum treated with A. oryzae at 1.0x108 conidia/mL deposited eggs average 166.207.5 eggs/female, compared to a control that laid eggs averaging 416.2521.71/female in cold. This study found that A. oryzae is good in controlling ticks and could be used to safeguard animals and humans in pastoral and protected regions.
Author(S) Details
Never Zekeya
College of African Wildlife Management, Mweka P.O. Box 3031, Moshi,Tanzania.
Houssein Kimaro
College of African Wildlife Management, Mweka P.O. Box 3031, Moshi,Tanzania.
Khalfan Kiondo
College of African Wildlife Management, Mweka P.O. Box 3031, Moshi,Tanzania.
Humphrey Ndossi
Tanzania Industrial Research and Development Organization (TIRDO), Kimweri Avenue Complex, Msasani, P. O. Box 23235 Dar es salaam, Tanzania.
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