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Table 1 Susceptibility of Oligonychus afrasiaticus to various isolates of Metarhizium anisopliae under laboratory conditions

From: Host-pathogen interaction for screening potential of Metarhizium anisopliae isolates against the date-palm dust mite, Oligonychus afrasiaticus (McGregor) (Acari: Tetranychidae)

Fungal isolates

LT50 (95% CI) (days)*

LC50 (95% CI)

(conidia/ml)†

Conidial viability

(%)

Pr1 activity

(μmol NA/ml/min)

2049

6.43

(3.89–10.63)

2.37 × 106

(1.34 × 106 − 4.20 × 106)

96.60 ± 0.68a

2.45 ± 0.05a

8762

11.86

(10.26–13.70)

7.77 × 107

(3.51 × 107 − 1.72 × 108)

97.20 ± 1.02a

1.47 ± 0.09b

7234

18.44

(14.40–23.62)

2.18 × 108

(9.45 × 107 − 5.02 × 108)

96.20 ± 0.80a

0.94 ± 0.09c

  1. *LT50 lethal time to kill 50 % population of date-palm dust mites
  2. †LC50 lethal concentration to kill 50 % population of date-palm dust mites
  3. Means ± SE values with different letter(s) denote significantly different results using Fisher’s LSD test, α = 0.05