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may be restricted by a line of wood-ashes or crude petroleum. Ringmg 

 the bushes with an adhesive substance between 11 a.m. and 3 p.m. 

 would prevent the larvae from climbing up them, but would have 

 to be done over a large area. The bagworms, Clania crameri, 

 C. Jiolniesi, C. variegata and Amatissa consorta attack the leaves and 

 bark. Collecting the cases at the beginning of the season is the best 

 method of dealing with these pests. Acanthopsyche reidi, the limpet 

 caterpillar, feeds on the upper epidermis or, in serious cases, on the 

 bark. The bushes should be sprayed with lead chromate. Thosea 

 cervina, the nettle grub, attacks the leaves ; it possesses considerable 

 stinging powers. Treatment is the same as for A. reidi. Another 

 Limacodid, Belippa bohor, can be sprayed with lead chromate, but 

 under ordinary conditions it is kept in check by a parasitic fly. 

 Arbela spp. bore into branches at places where the bark is stripped. 

 The larva emerges from the hole to feed and in so doing builds up a 

 tube which adheres to the branch. Affected bushes should be treated 

 in cold weather with alkali wash to soften the bark and render it less 

 liable to attack. The removal of infested branches is also advised. 

 Biston suppressaria can be almost completely eradicated by hand- 

 forking round the bushes in cold weather and by the collection of pupae 

 and moths. Spraying with lead chromate is useful against the larva. 

 Agriophara rhombota fastens the leaves together by means of a web. 

 The best treatment is thorough cleaning of the bushes when pruning 

 and subsequent application of alkali solution. Helopeltis theivora 

 (tea mosquito) punctures the leaves, producing characteristic brown 

 patches. Young shoots are usually attacked. Sprays are useless 

 in a severe attack ; in cases where this pest has been held in check, 

 combined spraying, hand-picking and cultural methods have been 

 used. Empoasca flavescens produces a stunted growth of the shoots. 

 Strong crude oil emulsion or potassium sulphide will kill the insects, 

 but spraying must be thorough. The Aphid, Ceylonica theaecola, 

 produces a marked curling of the leaves. Crude oil emulsion, resin 

 solution or a weak solution of phenyl (1 in 200) are all effective 

 remedies. The best treatment for various kinds of Coccidae is the 

 application of soda or emulsion-soda in the cold weather, followed by 

 resin solution in May or June. The solution may be sprayed or brushed 

 on to the bushes. Recent researches have shown that Thrips may be 

 caught by means of traps. These consist of small bowls containing 

 I pt. water and a small quantity of benzaldehyde. The insects are 

 attracted by the benzaldehyde and drowned in the water. The traps 

 must be scattered about the affected area ; each retains its efficiency 

 for five or six days. Several species of termites are found in tea 

 districts. The heartwood of living bushes is attacked and this ulti- 

 mately results in the death of the affected plants. Cultivation and 

 careful pruning are the best remedies. In the case of mound- 

 forming species, the " Universal " White Ant Exterminator has been 

 found useful. Tetranychis biocnlatus sucks the juices from the older 

 leaves, giving them a reddish brown appearance. In severe attacks, 

 the leaves fall off, and the damage extends to the young shoots. 

 Suitable insecticides are potassium sulphide, crude oil or kerosene 

 enmlsion and lime-sulphur solution. As none of these sprays will kill 

 the eggs, a second spraying must be carried out four days later. The 

 Acarid, Brevipalpvs obovatus, is found on the under side of the leaf only. 



