Aaltjes tegen engerlingen (Heterorhabditis bacteriophora)

Aaltjes can effectively control englerlings when applied while they are young (under 2 cm), reducing them by 80% to 95%. Application is most effective before englerlings grow larger than 2 cm.

• The description claims that the effectiveness of controlling englerlings decreases to under 50% when aaltjes are applied to larger englerlings.