Trial 2240

Defeat 300 Plantoids (Easy Prey or above) during Windsday or Wind weather. Each kill made during weather counts as 5; during day and weather counts as 6. Mayhem must be equipped.

Possible camps with a chance of wind weather include:
Bhaflau Thickets -- Colorful Treant, Olden Treant, Treant Sapling, Ameretat
Aydeewa Subterrane -- Mycohopper, Puktrap, Treant Sapling, Great Ameretat
Wajaom Woodlands -- Colorful Treant, Defoliate Treant, Treant Sapling, Ameretat, Great Ameretat
Fort Karugo-Narugo (S) -- Rafflesia, Jumbo Rafflesia
Grauberg (S) -- Brasscap, Knotty Treant

Since the first three areas are all close to Aht Urhgan Whitegate, you can use Magian Spectacles to check the chance of upcoming wind weather in all three and then go wherever the weather is most favorable. Alternatively, if starting from your home nation in the past, you can easily check the two past areas for weather prospects quickly using Allied Notes teleportation.