130 GARDEN FOES. 



Strawberry Mildew (SpluLTotlicca liumuli).— A 

 fungus wliieli altacks tliu hop, as well as the strawberry. 

 It causes the leaves to curl in the first instance, and then 

 the mycelium appears on the under surface as a white 

 mould. The fruit also is attacked. Sudden changes of 

 tem2Jerature are favourable to the ai)pearance of the 

 mildew on outdoor and indoor crops. 



ItEMEDY. — Directly the leaves begin to curl spray the 

 plants with Formulai Nos. 22 or 23. 



CHAPTEE X. 



TOMATO PESTS. 



A. -INSECTS. 



Eelworm, or Root Knot Disease. — The roots of 

 tomatoes and cucumbers are occasionally infested by a 

 microscopic animal called the Eelworm. The latter are 

 very small, translucent creatures, measuring about 1-75 

 of an inch in length. They are hatched from eggs present 

 in the soil, from whence they bore into the roots of toma- 

 toes and cucumbers, gain admission to the cells, which 

 they rupture, and thus cause knots or swellings to form 

 on both the large and small roots. The effect of this dis- 

 organisation of the cellular tissue is the gradual wilting 

 and total collapse of the plant. The Eelworm in question 

 is known as Heterodera radicicola. 



Kemedies. — Burn any plants attacked. Saturate the in- 

 tended compost before using three times, at intervals of 

 a fortnight, with a solution of one part of carbolic acid 

 to twenty parts of water. Do not use compost so treated 

 until an interval of six weeks has elapsed. Or, mix 

 Vaporite or Kilogrub with the compost a few weeks before 

 using. Clear out infested soil, and treat as advised for 

 new compost before using it elsewhere. Spray the beds. 



