Informatics Publishing Limited

T. P. S. Teotia , N. Majumdar

Abstract

1. The results of examination of a large number of brood lac samples received from different States for the forecast of larval emergence have been reported. 2. The Yellow Spot Method originally advocated by Negi (1955) as well as the Microscopic Method of examination of ovaries for ascertsining stages in the development of ova (Misra, 1929) have been found almost equally satisfactory for the forecast of larval emergence during Baisakhi, Katki and Jethwi crops on a number of lac hosts. None of the two methods can, however, be depended upon for the forecast of larval emergence during Aghnni crop. 3. Some general tests for judging crop maturity have been suggested. 4. Attempts have been made to simplify the Yellow Spot and Microscopic Methods, so as to make them more useful for those engaged in lac cultivation.

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B. K. Purkayastha , T. P. S. Teotia

Abstract

No abstract

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N. Majumdar , T. P. S. Teotia

Abstract

no abstract

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R. S. Gokulpure , B. P. Mehra , S. Krishnaswami , T. P. S. Teotia , B. N. Sah

Abstract

Pruning aims at producing maximum number of suitable shoots and is one of the chief factors responsible for the survival of the lac insects and the ultimate crop yield. Systematic trials on lac cultivation on ghont in Madhya Pradesh were carried out for the first time. Results indicate that pruning for Baisakhi crop (October/November to June/July) should be carried out in April of the same year to allow six months' time and for Katki crop (June/July to October/November) in May of the previous year to allow thirteen months' time for the development of maximum number of suitable shoots after pruning.

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