Average effect when cydalima perspectalis but completely impractical dosage device

Thanks Calypso and some artifices my two book-balls have survived, driving with fertilizer supplies and in favorable weather continued powerful and lead brave their struggle for survival against new infestation and some larger caterpillars, in which the action began so late that they previously still some could erode. After the rain had washed away from Calypso the leaves again, crawling, and devoured the larger crawler merrily. After all, small caterpillars to about 1 cm have been killed immediately. The growth and propagation of larger crawler was indeed significantly slowed, but I could not completely wipe out yet.

In order not to stand in the spray itself, I have chosen the method spreading with the watering can. Equipped with surgical mask and latex gloves, the mixture was applied directly into the watering can. The calculated amount of Calypso was added to the watering, measured the amount of water required in a canister and slowly to avoid splashing around, was added thereto.
Here earn the fine print and the description for the application and dosage somewhat cryptic instructions and especially the inconvenient dosing device no special advantages. Why not just a cap as a measuring cup, in place of this combination of parental control and volume measurement?

At the end of the watering can was 5 times consecutively rinsed with a little water. This washing water was flushed from the bottom in the plant. Since the book balls while standing outdoors, but are planted in a framed Rundbeet, so the impact on the surface water is limited.

I will consume the resources and then as recommended by gardeners alternately use to avoid resistance the competing product until no more leaf damage is noted and no more caterpillars are visible.

Despite some improvement recommendation to buy, because there is only the two products.