Members of Loranthaaeae are semiparasitic angiosperms and are popularly known as mistletoes. They cause more economic loss than any other angiospermia parasites. They mostly attack dicotyledors and gymnosperms which include horticultural plants as well as forest trees. Control of mistletoes has been advocated and practised throughout the world. Gill and Hawksworth (1961) suggested (i) physical removal and (ii ) chemical control as direct control measures. Silvicultural management system like thinning and use of isolation strips have been stated to be effective in reducing the infestation and spread of dwarf mistletoes (Greenham and Hawksworth 1964 ; Hawksworth et al. 1977). Certain amount of natural control exists in some areas where particular insectsand fungi reduce the infestation (Greenham and Hawksworth 1964). Gill and Hawksworth (1961) gave brief notes on insect attack of dwarf mistletoes. Approach towards the biological control of mistletoes by insects has been indicated by Hawksworth (1971 ) and Smith and Funk ( 1980 ). Graves and Graves ( 1980) noted that the larvae of Citheronid regalis ( Citheronoiidae : Lepidoptera) feed on the leaves of Citheronid regalis ( Citheronoiidae :Lepidoptera) feed on the leaves of Phoradendron flavescens (Pursh) Nutt.

Safety matches are a consumer item of everyday use. There are about twenty safety match factories located mostly in the southern part of Bangladesh. In 1984-85 the country produced 940 million gross boxes of safety matches (Anon. 1985). This quantity is enough to meet the entire demand of the country. At present there is no export of this commodity presumably because of scarcity of suitable timber species and strong competition in the international market. The traditional species used in Bangladesh have different unattractive tints.

Sundri wood chips were subjected to a mild chemical pre-treatment by soaking them in 1,2 and 3% solutions of NaOH and Na2SO3, individually as well as in mixture, for 24 hours at atmospheric conditions. Hardboards made from pre-treated chips were tested for determining their strength and water resistance properties. It was observed that the boards made from the chips pre-treated with NaOH alone and in mixture with Na2SO3 were stronger than those made by simple steam softening of the chips prior to refining. Also the strength of the hoards increased with an increase of the concentration of the pretreatment solutions. Pre-treatment with NaOH alone produced stronger boards than with the mixtures. Any such effect on the strength property of the boards, however, was not obvious in the pre-treatment with Na2 SO3 solutions. AU the pre-treatment methods adversely affected the water resisting properties of the boards.

Calamus longisetus Griff. (Palmae) has been recorded to be distributed in Andaman Islands, Burma, Thailand, Indonesia and Malay Peninsula (Beccari and Hooker 1892-93 ; Blatter 1926 ; Dransfield 1979 ; Basu and Basu 1987). The various floristic works by. Becaari and Hooker ( 1892—93), Prain (1903a; 1903b), Brandis (1906), Heinig ( 1925), Raizada (1941 ), Sinclair (1955) and Khan et al. (1984), have not recorded its occurrence in the region now under Bangladesh.

Kraft pulping of whole jute plant without retting was conducted in the laboratory scale. Compared with kraft pulping of bamboo, the unbleached pulp yield with unretted jute plant was lower by about 3.0 percent points at the same point of delignification. The yield was lower by 17.0 percent points compared to kraft pulping ofjute bast fibre. Jute plant pulp degraded severely on bleaching. However, the quality of unbleached pulp was almost similar to kraft bamboo pulp. Whole jute plant can thus replace bamboo in making papers which do not require bleaching.

Data on the availability of different sizes of fruits, seed production according to size classes, germination success and viability of  seeds of Sonneratia apetala Buah—Ham. were collected during 1984—85 from the Chittagong coastal area. The fruit dropping period extended from late July to early October. Fruit size varied and proportion of medium sized fruits was h:gh. No significant difference in germination success was detected when seeds from different fruit size classes were collected and sown. Viability of seeds declined with passage of time in the laboratory as well as under field conditions. No seed germinated in the field when sown after 60 days of fruit collection.

Pati-pata (Schumannianthus dichotomd) grows well in the land whiah is unsuitable for any other agricultural crop (jute, rice, etc.). Cultivation of pati-pata ia less expensive than that of jute or rice, giving a good economic return. An experiment was conducted to determine the growch and survival of a pati-pata plantation during the first year after planting. Both rhizome and branch cutting were used as propagating material for plantation. The results indicate that rhizomes are significantly more suitable than branch cutting for survival, average number of new culms produced and average height growth. No significant difference was found among the localities other than in Sylhet for average number of new culm produced and average height growth in rhizome planting.