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morphology of the insect is described, with information as to its biology 

 and habits." The author believes that its natural host is the turpentine 

 tree and that it has gradually adapted itself to the pistachio. The 

 method recommended for control of M. ballestrerii is the collection 

 and burning of all infested pistachio fruit either on the plant or on the 

 ground. All turpentine trees in or near pistachio plantations should 

 be dealt with in the same manner, the quickest and most certain 

 method in this case being the destruction of the female inflorescences 

 in April and May. 



Ballou (H. a.). Feeding Habits of the Parasites of Hardback Grubs. 



— Agric. Neivs, Barbados, xvii, no. 425, 10th August 1918, 

 pp. 250-251. 



This article reviews the hterature on the subject of parasites of 

 hardback grubs. With regard to the parasitism of Oryctes tarandus 

 by Scoliid wasps introduced into Mauritius from Madagascar, it is 

 pointed out that the difference between the method of feeding of the 

 larvae and adults of these parasitic insects is of interest. While the 

 actual feeding of the larva causing the death of some agricultural 

 pest is rightly considered of great importance in estimating the work 

 of the parasite, the very different habits of feeding on the part of 

 the adults must be taken into account in any attempt to introduce 

 these insects from one country into another, or to distribute them 

 from one locality to another in the same country. The varied feeding 

 habits of the adults of nearly related species make it necessary to study 

 each species separately in this respect. The question of parasite 

 introduction is now recognised as involving much more than the mere 

 transportation of the adults from one place to another and liberating 

 them in good condition. 



The Japanese Beetle in New Jersey. — Science, Lancaster, Pa., xlvii, 

 no. 1234, 23rd August 1918, pp. 185-186. 



As the result of infestations by the Japanese beetle [Adoretus 

 umbrosus tenuimacuhUus] in parts of New Jersey, a quarantine is 

 proposed in order to prohibit the shipment from this territory of 

 green sugar- corn, ripe tomatoes and ripe peaches. 



This beetle, introduced during the last 5 or 6 years in soil round 

 the roots of iris, presumably from Japan, has thoroughly estabhshed 

 itself, the area of infestation invohang approximately 25,000 acres. 

 It is a general feeder, attacking the grape, peach, plum, apple and 

 cherry, as well as many ornamental plants, and feeding freely on a 

 variety of weeds. It also injures the sweet potato and other vegetable 

 crops, especially sweet corn, the beetles penetrating into the tips of 

 the ears, in a similar manner to the common corn ear- worm [Heliothis 

 obsoleta], thus rendering possible its easy and wide distribution. 



Ball (E. D.). Leaf Burn of the Potato and its Relation to the Potato 

 Leaf -Hopper. — Science, Lancaster, Pa., xlviii, no. 1234. 

 23rd August 1918, p. 194. 



A careful study of the potato-growing areas in the northern part 

 of the United States, where there has recently been a remarkable 

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