RDE Abstract of Completed Research
Sugarcane Pests / White Grubs
- Integrated pests management
for white grubs in Balayan Mill District (2001)
- Juliet Recuenco and
Marcelino Guevarra
-
- The effectiveness of various IPM strategies,
deep plowing with white grub collection, fallowing, proper timing
of planting and application of soil insecticides were tested
at farmers' field for the control of white grub in sugarcane.
-
- Deep plow cultivation combined with white
grub collection followed by four months fallowing reduced the
number of larvae from five to seven per sample to zero, in eight
and eleven months observations.
-
- Application of soil insecticides, Apache
10 G (Cadusafos) and Carbophen 6 G, (MTMC + phenthoate) protected
the sugarcane plants from white grub damage completely two to
five months after treatment. The sugarcane plants were generally
taller in the treated soil than in the untreated soil.
-
- The yield reported by the cooperator was
100 tons per hectare which was very much higher that the previous
year when white grubs attacked the sugarcane plants.
-
- Proper timing of planting and application
of soil insecticides, deep plowing with larvae collection and
fallowing demonstrated their effectivity in reducing white grub
population damaging sugarcane.
- White grubs, Leucopholis irrorata
(Chevr.) infestation in sugarcane growing area in Luzon (2000)
- Juliet Recuenco
-
- White grubs sampled in Don Pedro, Balayan,
Tarlac and Pampanga mill districts showed that very few grubs
were observed at different stages. Grubs stayed deeply under
the soil during dry months due to lack of moisture. However,
in May and June, the continuous rains was conducive for the development
of the grubs under the soil and the emergence of the adult beetles.
White grubs were found just below the soil surface on grass and
sugarcane roots during rainy months.
-
- Leucopholis irrorata were more in Balayan
and Don Pedro than in Pampanga and Tarlac mill districts. Holotrichia
and Anomola species were more abundant in the latter mill districts.
-
- The infestation of area previously planted
with sugarcane and latter switched to other crops such as rice
and cassava aggravated the white grub problem due to the presence
of more roots for the pest to feed on.
-
