JUANITA E. VAN KOPPENHAGEN,HERBERT BENSON SCHER,KUO-SHIN LEE,IAN M. SHIRLEY,PHILIP P. WADE,RICHARD R. FOLLOWS
申请号：
BR9912584
公开号：
BR9912584B1
申请日:
1999.07.28
申请国别(地区):
BR
年份:
2013
代理人:
摘要：
Microcapsules formed from an aminoplast shell wall and an encapsulated ingredient or ingredients enclosed within the wall in which the wall contains a base-cleavable ester moiety. These capsules have been found to be sensitive to the presence of base such that in the presence of base, the capsule walls are relatively quickly disintegrated or degraded so as to produce a relatively quick release of the encapsulated materials. Microcapsules of this invention are particularly suitable for use in controlling insects having an alkaline gut such as certain lepidoptera in that the capsule shell wall may be designed so as to quickly disintegrate under the alkaline conditions present in the gut of the insect thus providing a microcapsule which is safe to handle but which is selectively effective against certain undesirable insects while not harmful to beneficial insects or insects which do not feed on the capsule materials.
