Effect of Some Biological Control Fungi on Life Stages of the
Two-Spot Spider Mite Tetranychus urticae Koch (Acari:
Tetranchidaea) on Eggplant
الباحث الأول:
Husham R. Meteab
الباحثين الآخرين:
Jamaal H. Kadhim2, Aqeel N. AL-Abedy3 and Balqees H.
AL-Musawi4
المجلة:
IOP Conference Series: Earth and Environmental Science
تاريخ النشر:
None
مختصر البحث:
Abstract. This study aimed to determine the effect of some filtrate of bio-fungi (Trichoderma
harzianum, T. asperelloides, Beauveria bassiana and Penicillium sp.) in controlling the twospot
spider mite that infects eggplant. Fungi filtrates have b…
Abstract. This study aimed to determine the effect of some filtrate of bio-fungi (Trichoderma
harzianum, T. asperelloides, Beauveria bassiana and Penicillium sp.) in controlling the twospot
spider mite that infects eggplant. Fungi filtrates have been tested against all roles of the
red mite (eggs, larvae, nymphs and adults). The results showed that T. harzianum was the most
effective among other fungi in controlling T. urticae, recording the lowest egg hatching of
55.42% and the highest mortality rate for motile instars, which reached 69.37 60.04 and 62.33
for larvae, nymphs and adults, respectively, with a significant difference from the fungi. T.
asperelloides, B. bassiana, and Penicillium sp. respectively. As for the concentration of the
filtrate, in general, the efficiency of the filtrate increased with increasing concentration. The
concentration of 100% recorded the highest reduction in the number of hatched eggs with a
hatching rate of 59.33% and an increase of the dead individuals with mortality rates of 60.00,
55.37 and 51.58% for larvae, nymphs and adults, respectively, compared to concentration 25%,
which led to a hatching rate of 79.67% and significantly less mortality for all stages.
