71 



A. sacchari on sugar-cane, Pseudischnaspis alienus on guava and 

 palms, and Vinsonia stellifera on sapodilla from Cuba ; Aspidiotus 

 destructor on palms from Cuba and the Isle of Pines ; and the seed- 

 infesting Hymenopteron, Bephrata cubensis, in soursop from Cuba. 



Blair (K. G.). Pests of Almond Trees in Palestine. —Entom. Mthly. 

 Mag., London, 3rd Ser. vi, no. 61, January 1920, p. 13. 



A Buprestid, Capnodis carbonaria, Klug, a Scolytid, Scolytus 

 amygdali, Guer., and an Aphid, Tuberodryobius persicae, Cholodk., 

 are reported as injuring almond trees in Palestine. Nearly full grown 

 larvae of C. carbonaria have been found boring between the inner bark 

 and the wood of the stem undergrowth and in the roots. In many 

 cases the stems were completely girdled. Pupae were found in an 

 enlarged hollow of the boring about two inches below the surface. 



In an editorial footnote it is stated that Capnodis tenebrionis, L., 

 and ChalcopJwra stig)natica,"Da\m., have been reported from Salonika 

 on apricot and other fruit trees. 



Cotton (R. T.). Insectos que atacan las Hortalizas en Puerto Rico. 



[Insects attacking Garden Plants in Porto Rico.]— -Key. Agric. 

 Puerto Rico, San Juan, i, no. 3, June 1918, pp. 119-131, 8 figs. 

 [Received 27th December 1919.] 



It is considered that no less than 20 per cent, of the vegetable- 

 garden crops of Porto Rico are destroyed by insects. The present 

 paper has been issued to give in popular form the necessary information 

 about them, and the remedial measures against them [R.A.E.,A, vii, 

 248]. Instructions are given for the making and use of the usual 

 insecticides. 



Smyth (E. G.). Como combatir el Gorgojo de la Batata. [Measures 

 against the Sweet Potato Weevil] — Rev. Agric. Puerto Rico, 

 San Juan, i, no. 3, June 1918, pp. 136-139. [Received 27th 

 December 1919.] 



Cylas formicarius (sweet potato weevil) destroys sometimes more 

 than 75 per cent, of the sweet potato crop in Porto Rico, and in many 

 instances a crop so damaged is allowed to rot in the ground, thus 

 forming an ideal breeding-place for large colonies of the pest. In 

 order to ensure a clean crop, the same land should not be sown with 

 potatoes at less than two years' interval, and any old plants should be 

 removed from the ground at least one month before the potatoes are 

 sown. Potatoes that are quite free from infestation should be bought 

 for seed, or if the best of a previous crop are used they should be fumi- 

 gated with 2 or 3 oz. of carbon bisulphide per bushel for 24 hours. 

 When a large area is found to be infested the only remedy is to gather 

 the whole crop as soon as the infestation is discovered. The crop 

 should then be divided into three classes, namely, those fit for sale, 

 which should be despatched at once and the few kept for seed imme- 

 diately fumigated; those without commercial value, which should be 

 boiled and then given to stock; and those that are too bitter to be 

 given to animals, which should be burned or buried more than 

 1 ft. deep. The tubers in the ground should then be turned up with 



