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Effect of Root-Knot Nematode Population on Yield, As Measured by the Number of Juveniles per Kilogram in Samples of Sandy Loam Soil Taken in March in the San Joaquin Valley.
Number of Juveniles |
Percent of Normal Yield |
|
0 to 55 |
100 |
100 |
98 |
150 |
95 |
200 |
93 |
250 |
91 |
300 |
89 |
350 |
87 |
400 |
85 |
450 |
83 |
500 |
81 |
550 |
80 |
600 |
78 |
650 |
77 |
700 |
75 |
750 |
74 |
800 |
73 |
850 |
71 |
900 |
70 |
950 |
69 |
1000 |
68 |
|