Vol. XIV. No. 350. 



THE AGRICULTURAL NEWS. 



i I 



with varieties imp Sutton & Soi 



London and Messrs. Vilmorin • Paris. The 



mmmai-j of the 

 Philip ; 



in i he W est 1 dii s matoes is 

 shed with i 



1. T imal ies. ii irdinai ily level ground 

 are n and 



Tomatoes planted in a ad are 

 likelj ' v fruit. 



2. t »f tlii wo import ii s, onhj eight could 

 be ma • r fruit in ■ » . ( )l' these eight, I hree 

 are of the commercial t \ pe, and I ve of the small 

 types. The showing for th - Ful varieties was fair, 



' ime i he} have been 

 tried in this country. Seed eleci onshave been made from 

 the hen mts. It is expected hal future generations 



will give better results as d proceeds. 



■'I. The smaller fancj types were more successful than 

 tlic large commei I , apparently because the formei 



approach the wild type re closely, and, therefore, are hard 



ier and better equipped to resist adverse conditions than the 

 more highh specialized i ms. 



I. It was found that the tomatoes raised from seeds 

 imported from France did better in this region than those 

 from seeds imported from England. The apparent reason 

 for this is that the former is a more southern country. 



5. Due [uirements of the plants in the way of 

 ive cultivation, it is not advisable to raise tomatoes on 



a large scale unless a large amount of labour, properlj 

 handled, is available. 



6. A period of prolonged drough . and, likewise, a period 

 of heavy and continuous rainfall will cause failure to sel 

 fruit. 



7. A Long rainless period retards growth on the charac- 

 teristically porous soils of the College farm, in spite of 

 occasional irrigation. 



8. A period" of sunshine following a period of rainfall 

 results in an increase in the rate of growth. 



9. A period of continuous heavy rainfall retards 

 growth. 



10. A period of light rainfall following a period of 

 sunshine results in an increase in the rate of growth. 



II. The season of the most rapid average growth of 

 a variety is the season in which that variety will have the 



greatest field yield in fruits. 



A Cotton Stainer Trap. In 



' 



volume from 



M " 1 1 1 r- 



Dr. 



V, wi 

 y Dr Morrill differs fr the 



id till' fUUl :| ill-. 



1 of this 

 \ ith a 

 film of kei osene o 



3 are prevented frot small qu mtitj 



of water and ken [ding little 



to the weight. 



Mr. Robson states that a i venienl form in 



Montserrat is 6 j inches deep and 6^ inches across. The 



funnel constituting the i lep. 



Destruction of Flies by Means of Disease. - 

 'I'h i following appears in the R 

 Series B, Part 6, p. 89: 



'Hesse's experiments on Mucoi i twsus which 



constantly resulted fr attempts to cultivate Empusa muscae 



led him to try the former upon Hies, lie nut with success 

 both on captured and on bred flies, and polymorphism ofthes 

 two fungi therefore ed itself. Further and careful 



experiments only resulted in theconstant production of 

 racemosus. The author cultivated the fungus by Ees 



method on slices of yolk of egg Sterilized al 1 1 "I' I '. from flies 



dead of Empusa muscae and made a series oi experi 

 with it. All his flies, bred from insects in confinement 

 of Empusa muscae and repeated culture from the dead flies 

 yielded only Mucor racemosus. To remove the difficulty that 

 the food supplied might have only stimulated the gro* 

 Empusa spores already dormant in the bodies of the tli 

 groups of flies were fed on syrup containing spores of Afucoi 

 kiemalis and Mucor racemosus respectively, and all died with 

 the usual signs of Empusa muscae as the cause. The controls 

 lived on and died naturally without exhibiting any such signs. 

 Hesse's observations an- thus confirmed. Trials have been 

 made of fly-papers smeared with syrup infected with spore- of 

 M. racemosus and the impression was that a marked im 

 of fly mortality took place. Manure containing larvae was 

 sprinkled with the same syrup and none of the larvae 

 matured.' 



Kight first generation hybrids of maize and one wheal 

 hybrid, together with their parent strains, were included in 

 water-requirement measurei Vki in, Colorado, from 



1912 to 191 1. The hybrids ranged in water requirement 

 from 10 per cent, below to 10 pel tent, above the parental 

 mean. On the basis of the results so far obtained, the 

 chances are even that a maize hybrid will not depart in its 

 water requirement more than 6 per cent, from the parental 

 mean. 



Cross pollination between individual plants of maize 

 leads to results similar to hybridization of different strains, 

 so far as water requirement and yield are concerned. 



A wheat hybrid which had been grown for several 

 generations gave a water requirement of 1 1 percent, above 

 the mean water requirement of the parental -trains. [Journal 

 ■of Agricultural Research, for August 1915.) 



Trees Lost in Dominica Botanic Gardens 

 During Recent Storm. — The following is a list of the 

 species of trees lost in the Gardens during the recent storm 

 in Dominica. Plants or seeds of the species named would be 

 welcome at the Gardens Pn • <iv<<; !'•■■< una su'»rosa; 



TVeculia a/ricana; Spachea perforata; Enterolobium Tim- 

 bouva; Enterolobium cyclocarpum; Peltophorum ferrugineum 

 and C our atari e.rigua. 



Fortunately the li is a small one. Mr. Joseph -lone.-., 

 the Curator, points oul that it would have been a long one, 

 had he not in past .car- followed a system oi planting 



duplicates whenever possible. Many fine 



other than those in the list have Keen lost, but in almost 



every case the duplicat pecies svas uninjured 



