Reference

Low-volume spray of an oil-based systemic fungicide for controlling Oidium secondary leaf fall

Low-volume spray of an oil-based systemic fungicide for controlling Oidium secondary leaf fall. Lim, T. M. (Rubber Res. Inst. Malaysia, Kuala Lumpur, Malay.). Proc. Rubber Res. Inst. Malays. Plant. Conf., 231-42 (English) 1976. CODEN: PMPCDT. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemicals) A method for low-vol. spraying of the systemic fungicide BAS 2203 F (I) [24602-86-6] in oil against Oidium secondary leaf fall is described. Lab. and glasshouse tests have shown that it is readily absorbed by leaves and it acts as an effective antisporulant at low concns. A refined white oil, found nonphytotoxic to rubber leaves, provides a suitable carrier for I as a low-vol. spray with high residual properties. In field trials with low-vol. ground application, I in oil, applied 3 times during the disease season at 10- to 12-day intervals, effectively controlled Oidium secondary leaf fall. A yield increase of ￡13% was achieved in the season succeeding the yr of treatment. Thus, it can now be recommended as an alternative to S dusting.

Preliminary evaluation of some systemic fungicides for Ganoderma control and phytotoxicity to oil palm

Preliminary evaluation of some systemic fungicides for Ganoderma control and phytotoxicity to oil palm. Loh, C. F. (Oil Palm Branch, Malays. Agric. Res. Dev. Inst., Serdang, Malay.). Int. Dev. Oil Palm, Proc. Malays. Int. Agric. Oil Palm, Meeting Date 1976, 555-64. Edited by: Earp, D. A.; Newall, W. Inc. Soc. Plant.: Kuala Lumpur, Malay. (English) 1977. CODEN: 37MXAH. DOCUMENT TYPE: Conference CA Section: 5 (Agrochemicals) Lab. and preliminary nursery evaluation of systemic fungicides was conducted for control of Ganoderma on oil palm. A new technique was introduced using oil palm male inflorescence stalk or fruit bunch stalk cut into slices instead of the std. agar-plate method. All the systemic fungicides tested, i.e. Actidione [66-81-9], Vitavax [5234-68-4], Benlate [17804-35-2], and Calixin [24602-86-6] were superior to controls like antimucin and thiram, which were found to be fungistatic to Ganoderma by earlier workers. At higher levels, Actidione (0.025% of com. material) and Calixin (0.05% com. material) completely killed the fungus colony. Phytotoxicity tests were conducted by repeated spraying to the foliage of nursery seedlings and in the field on mature palms by drilling 2 holes (1.5 cm diam.) in the trunk, and allowing the fungicide solns. to drip in from a plastic bag. Except for Actidione, no significant differences in frond length depression of the seedlings were detected. In mature or field palms, visual assessment of necrosis or rotting around the bored holes were used to assess phytotoxicity. Actidione was the most phytotoxic at all the levels tested.