There are three types of harmful pests plastic flower pot Maple. Soil pests such as grubs, mole crickets and other chew the root and seedling stem base, could easily lead to dead seedlings. Can be used hxt1tpqp 50% phoxim EC or Lorsban 1000 times, water mixed with fine soil or root applicator. Fresh foliage pests such as beetle invasion, slug, aphids, etc., eat red maple leaves, resulting in poor seedling growth, requires the use of abamectin, catch discontented, omethoate 800-1000 times to spray. Boring pests such as beetles, borers and other insect damage heart red maple branches, twigs and even cause the whole plant red maple seedlings died, to be used to kill Ju fat, green for spraying 2000-3000 times and other martial arts, or insects crossing branches injection to methamidophos, dichlorvos and other pesticides and mouth sealed with sticky mud.