LEGISLATORS yesterday urged the Government to invest more in education, in particular on the upgrading of colleges of education. Appointed legislator Mr Timothy Ha Wing-ho said only when the Government was willing to invest in future generations could the quality of education be maintained. He was concerned if the necessary funds would be made available for the implementation of the Government's plans for expansion in basic and higher education. Mr Ha, principal of St Paul's College, said spending on education had lagged behind countries with comparable economic growth. He called on the Government to provide more benefits for teachers in a bid to reverse the persistently-high wastage rate, which remained at about 10 to 12 per cent in primary and secondary schools respectively. A comprehensive scheme of benefits should also be drawn up to boost the morale and status of teachers, he said. The teaching profession's representative in the legislature, United Democrat Mr Cheung Man-kwong, was critical of the Financial Secretary Mr Hamish Macleod's budgetary proposal on education, saying it contained no plan to stop teacher wastage. He urged the Government to provide sufficient funds to build an independent and self-sufficient campus for teacher training. Lawyer legislator Mr Simon Ip Sik-on also urged the Government to provide all necessary funds and resources to upgrade colleges of education and to implement the recommendations in the fifth Education Commission Report. Noting that Hongkong's expenditure on education lagged behind most developed countries, Mr Ip said: ''This is a reflection of insufficient investment in kindergartens, primary and secondary schools.''