VTT Technical Research Centre of Finland Ltd. has developed and utilized Low Temperature Co-fired Ceramic (LTCC) technology for about 25 years. This paper presents our activities related to photonics and millimetre-waves, including also a relevant literature survey. First a short summary of the technology is given. Especially, the unique features of LTCC technology are described in more details. In addition, several examples have been given to show the validity of LTCC technology in these high-performance fields.

In the years 1999-2001, efficiency of plant protection products in control of early blight (Altemaria so/ani) was evaluated in two series of field experiment. There were examined four contact fungicides: propineb (Antracol 70 WP), chlorothalonil (Bravo 500 SC), mancozeb (Dithane M-45 80 WP) and zoxamide + mancozeb (Unikat 75 WG), and two with local penetrant mobility proparnocarb- hydrochloride + chlorothalonil (Tatoo C 750 SC) and metalaxyl-M + mancozeb (Ridomil Gold MZ 68 WP). In the series I propineb (Antracol 70 WP) showed the greatest efficacy in early blight control while in the series II mancozeb (Di thane M-45 80 WP) did.