Total developmental time of <i>Episyrphus balteatus</i> immatures (from first instar to adulthood), weight of the third instar, survival time under starvation of third instars and 6h predation rate by third instars (% of <i>Acyrthosiphon pisum</i> aphids killed) when offered various diets.

<p>Values in the same column followed by a different letter are significantly different. n: sample size.</p><p>Total developmental time of <i>Episyrphus balteatus</i> immatures (from first instar to adulthood), weight of the third instar, survival time under starvation of third instars and 6h predation rate by third instars (% of <i>Acyrthosiphon pisum</i> aphids killed) when offered various diets.</p

Total developmental time of <i>Harmonia axyridis</i> immatures (from first instar to adulthood), weight of the fourth instar, survival time under starvation of third instars and 6h predation rate by third instars (% of <i>Acyrthosiphon pisum</i> aphids killed) when offered various diets.

<p>Values in the same column followed by a different letter are significantly different. n: sample size.</p><p>Total developmental time of <i>Harmonia axyridis</i> immatures (from first instar to adulthood), weight of the fourth instar, survival time under starvation of third instars and 6h predation rate by third instars (% of <i>Acyrthosiphon pisum</i> aphids killed) when offered various diets.</p

IGP by <i>Harmonia axyridis</i> on <i>Episyrphus balteatus</i> on potted pepper plants after 24h.

<p>Percentage of third instars of <i>Episyrphus balteatus</i> reared on an <i>ad libitum</i> or limited supply of aphids that were killed through IGP on pepper plants after 24h by third instars of <i>Harmonia axyridis</i> reared on various diets. Aph ad lib: <i>ad libitum</i> supply of <i>Acyrthosiphon pisum</i> aphids, Aph lim: limited supply of aphids, Pollen: moist honey bee pollen. No statistically significant effect of larval diet of <i>H</i>. <i>axyridis</i> was found (generalized linear model with Poisson error distribution and a log link function). Error bars represent SE-values.</p

IGP by <i>Harmonia axyridis</i> on <i>Episyrphus balteatus</i> in Petri dishes after 90 minutes.

<p>Percentage of third instars of <i>Episyrphus balteatus</i> reared on an <i>ad libitum</i> or limited supply of aphids that were killed through IGP in Petri dishes after 90 minutes by third (A) and fourth (B) instars of <i>Harmonia axyridis</i> reared on various diets. Eph: <i>Ephestia kuehniella</i> eggs, Aph ad lib: <i>ad libitum</i> supply of <i>Acyrthosiphon pisum</i> aphids, Aph lim: limited supply of aphids, Pollen: moist honey bee pollen. The effect of larval diet of <i>H</i>. <i>axyridis</i> is indicated by lowercase letters (generalized linear model with Poisson error distribution and a log link function); within each panel, groups of bars followed by a different letter are significantly different. Error bars represent SE-values.</p

Number of contacts (sum of the contacts that led to an attack and those without consequences) during the first 90 min of the Petri dish IGP experiments, number of contacts that resulted in an attack by <i>Harmonia axyridis</i> or <i>Episyrphus balteatus</i> and total number of replicates in which the attack by <i>H</i>. <i>axyridis</i> was successful (n = 20) for each combination of larvae reared on the various diets (means ± SE). L3–L4: third and fourth instar of <i>H</i>. <i>axyridis</i>.

<p>Number of contacts (sum of the contacts that led to an attack and those without consequences) during the first 90 min of the Petri dish IGP experiments, number of contacts that resulted in an attack by <i>Harmonia axyridis</i> or <i>Episyrphus balteatus</i> and total number of replicates in which the attack by <i>H</i>. <i>axyridis</i> was successful (n = 20) for each combination of larvae reared on the various diets (means ± SE). L3–L4: third and fourth instar of <i>H</i>. <i>axyridis</i>.</p