37 



adopt it, spring spraying with lead arsenate must be continued in 

 order to protect the fruit against indi\nduals that have not been killed 

 in winter. Tits render valuable aid in destroying this moth.^ 



Injury to apple by the saw-fly, Hophcampa testudinea, Klug, and 

 to pear by H. brevis, Htg., closely resembles that caused by 

 C. fomonetla. The destruction of infested fruit is the only known 

 check on these pests. Apples are sometimes, but only rarely, 

 attacked by Argyresthia conjvgeUa, Z. 



RiTZEMA-Bos (J.). De Koolzaadglanskever {Meligethes aeneus, L.)- 

 [The Seed-Cabbage Beetle.]— Tijdschr. Plantenziekten, Wageni?!- 

 gen, xxiii, no. 4, August 1917 ; Bijblad, pp. 22-24. [Received 

 15th November 1917.] 



In'reply to an enquiry the author expresses the opinion that cabbages 

 for seed may safely be re-planted in ground where the previous crop 

 has been destroyed by Meligethes aeneus, L., because this beetle 

 constantly occurs on cabbage and becomes dangerous only when the 

 growth of the plants is retarded by drought or by inclement weather. 

 Furthermore, as soon as the flowering of the cabbage is over, the 

 beetle migrates to other plants. 



Bernard (C). Over eenige Ziekten en Plagen van de Thee op de 

 Oosfkust van Sumatra. [Some Diseases and Pests of Tea on the 

 East Coast of Sumatra.] -i¥eie(^. Proefstalion voor Thee, Buiten- 

 zorg, no. 54, 1917, pp. 1-21, 7 figs. 



The first section of this paper deals with the^root diseases of tea 

 and the second is devoted to various pests of this plant. These include 

 a black Aphid, Curcuhonid beetles and the mites, Tarsojiemns trans- 

 Ineens, Eriophyes (Phytoptus) camiatus, Tetranychus biocuhtus, and 

 Brevipalpus obovatus. The larvae of Cania bilinea, which feed on the 

 tender tissues of the leaves and twigs, have caused serious loss in 

 some plantations and another Limacodid, Belippa bohor, also damaged 

 the foliage. The larvae of Att/icus atlas and Chaerocampa. alecto were 

 seldom seen, but Stauropus alternus (lobster caterpillar) was collected 

 in large numbers. The larvae of Ophiusa melicerta and Euproctis 

 latifascia are only of occasional occurrence. It is necessary to watch 

 for and destroy immediately, Clania variegata, C. crameri^ Acantho- 

 psyche snelleni and other Psychids. In a nursery the author has also 

 observed a very small species of Acanthopsyche, probably A. subter- 

 albatu, which has already been noticed on Albizzia. and tea in Java. 

 Parasa lepida, Dasyckira mendosa, Thosea recta and T. cenv'rjo were also 

 seen. Zeuzera coffeae (red borer) sometimes injured the young twigs. 

 Leaf-rollers also occur, but are not to be feared so long as the tea 

 plants are vigorous. The looper caterpillar, Buzura [Biston) 

 suppressaria, is also unimportant. The larva of Lawana, which 

 sometimes infests GreviUea, is only very exceptionally found on tea. 

 In spite of all the measures adopted in Java the tea-seed fly [Adroma 

 determinate., Walk.] is still imported into the East Coast of Sumatra 

 and might become dangerous were it not for the ease ^^ith which it 

 can be controlled [see this Review, Ser. A, iii, p. 434]. 



The third section deals with Helopeltis and Pachypeliis, both of 

 which may develop into serious pests of tea on the East Coast of 



