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Entomopathogenic nematode management of small hive beetles (Aethina tumida) in three native Alabama soils under low moisture conditions

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Figure 1:

Pupation survival rates of Aethina tumida, small hive beetle, wandering larvae in sterile autoclaved or natural non-autoclaved Kalmia loamy sand soil after 20 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p ≤ 0.05).
Pupation survival rates of Aethina tumida, small hive beetle, wandering larvae in sterile autoclaved or natural non-autoclaved Kalmia loamy sand soil after 20 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p ≤ 0.05).

Figure 2:

Pupation survival rates of Aethina tumida, small hive beetle, wandering larvae at four population densities in sterile autoclaved and natural non-autoclaved Kalmia loamy sand after 20 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p≤0.05).
Pupation survival rates of Aethina tumida, small hive beetle, wandering larvae at four population densities in sterile autoclaved and natural non-autoclaved Kalmia loamy sand after 20 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p≤0.05).

Figure 3:

Percent parasitization of Athina tumida, small hive beetle, wandering larvae after treatments of six purchased entomopathogenic nematode species in sterile autoclaved or natural non-autoclaved Kalmia loamy sand after 10 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p≤0.05).
Percent parasitization of Athina tumida, small hive beetle, wandering larvae after treatments of six purchased entomopathogenic nematode species in sterile autoclaved or natural non-autoclaved Kalmia loamy sand after 10 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p≤0.05).

Figure 4:

Percent parasitization of Athina tumida, small hive beetle, wandering larvae after treatments of six purchased entomopathogenic nematode species at five EPN population densities in sterile autoclaved and natural non-autoclaved Kalmia loamy sand after 10 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p≤0.05).
Percent parasitization of Athina tumida, small hive beetle, wandering larvae after treatments of six purchased entomopathogenic nematode species at five EPN population densities in sterile autoclaved and natural non-autoclaved Kalmia loamy sand after 10 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p≤0.05).

Figure 5:

Percent parasitization of Aethina tumida, small hive beetle (SHB), wandering larvae after treatments of three USDA reared entomopathogenic nematode (EPN) species in non-autoclaved Kalmia loamy sand at 50% field capacity after 10 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p ≤ 0.05).
Percent parasitization of Aethina tumida, small hive beetle (SHB), wandering larvae after treatments of three USDA reared entomopathogenic nematode (EPN) species in non-autoclaved Kalmia loamy sand at 50% field capacity after 10 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p ≤ 0.05).

Figure 6:

Percent parasitization of Aethina tumida, small hive beetle (SHB), wandering larvae after treatments of three USDA reared entomopathogenic nematode (EPN) species at three population densities in non-autoclaved Kalmia loamy sand at 50% field capacity after 10 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p ≤ 0.05).
Percent parasitization of Aethina tumida, small hive beetle (SHB), wandering larvae after treatments of three USDA reared entomopathogenic nematode (EPN) species at three population densities in non-autoclaved Kalmia loamy sand at 50% field capacity after 10 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p ≤ 0.05).

Figure 7:

Percent parasitization of Aethina tumida, small hive beetle, wandering larvae after treatments of three USDA reared entomopathogenic nematode species in a Kalmia loamy sand, Benndale fine sandy loam, and a Decatur silt loam soils types at 50% field capacity after 10 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p ≤ 0.05).
Percent parasitization of Aethina tumida, small hive beetle, wandering larvae after treatments of three USDA reared entomopathogenic nematode species in a Kalmia loamy sand, Benndale fine sandy loam, and a Decatur silt loam soils types at 50% field capacity after 10 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p ≤ 0.05).

Figure 8:

Percent parasitization of Aethina tumida, small hive beetle, wandering larvae after treatments of three USDA reared entomopathogenic nematode species at two EPN population densities after 10 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p ≤ 0.05).
Percent parasitization of Aethina tumida, small hive beetle, wandering larvae after treatments of three USDA reared entomopathogenic nematode species at two EPN population densities after 10 days. Means of bars with the same letter are not significantly different (Tukey–Kramer, p ≤ 0.05).

Chemical properties of non-autoclaved and autoclaved soils used in the studya.

Non-autoclaved Autoclaved
Unit DSL BFSL KLS DSL BFSL KLS
ppm Ca 22351 695 409 2085 376 230
K 283 72 58 271 49 68
Mg 258 62 174 228 147 72
P 281 36 28 262 32 20
Al 393 274 107 312 86 184
B 1.2 0.4 0.4 1.2 0.4 0.4
Cu 1.4 1 2.7 1.2 1.5 0.8
Fe 7 22 26 12 19 21
Mn 91 36 20 590 86 246
Na 46 39 38 48 40 36
Zn 20 4 2.9 15 2.4 2.9
NO3-N 11 27 12 7 8 21
CaCO3 3.8 <1.0 <1.0 2.5 <1.0 <1.0
Soluble salts 238 238 1,428 381 159 254
mmhos/cm Electrical conductivity 0.19 0.19 1.12 0.3 0.12 0.2
% N 0.25 0.07 0.035 0.24 0.029 0.07
% C 2.99 1.38 0.54 3.12 0.5 1.41
% Organic Material 5.1 2.4 0.9 5.4 0.9 2.4
% S 0.031 0.009 0.0073 0.027 0.0066 0.013
% Moisture 0.57 0.93 0.026 0.89 0.26 0.68
cm3/cm3 H2O availability 0.16 0.09 0.08 0.16 0.07 0.09
pH 6.00 4.59 6.94 7.00 6.85 5.29
eISSN:
2640-396X
Langue:
Anglais
Périodicité:
Volume Open
Sujets de la revue:
Life Sciences, other