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PLANT PROTECTION 1 – Pests, Diseases and Weeds

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<strong>PLANT</strong> <strong>PROTECTION</strong> 1 – <strong>Pests</strong>, <strong>Diseases</strong> <strong>and</strong> <strong>Weeds</strong><br />

CONTROL<br />

METHODS (contd)<br />

This is a guide only,<br />

it is not a substitute<br />

for reading all of the<br />

label <strong>and</strong> the MSDS<br />

<strong>and</strong> obtaining<br />

up-to-date advice<br />

NEMATICIDES. (contd)<br />

Nemacur -accelerated biodegradation. (NAB). Nemacur (fenamiphos) <strong>and</strong><br />

other pesticides degrade in the environment at varying rates due to various processes, eg<br />

– The environment, eg light, temperature, moisture.<br />

– Microorganisms in soil, eg fungi, bacteria, obtain their food from Nemacur .<br />

– Addition of more Nemacur allows the microorganisms to proliferate, but at the same<br />

time the effective life of Nemacur may be shortened considerably.<br />

– Repeated applications of Nemacur makes the problem worse.<br />

– A free soil testing service established by Bayer ensures that the Nemacur non-use<br />

period is sufficient to reduce numbers of biodegradation microorganisms.<br />

– To maximize life of Nemacur use the right rate (underdosing will lead to shorter<br />

term control <strong>and</strong> overdosing may lead to more pronounced biodegradation) <strong>and</strong> rotate or<br />

alternate nematicides.<br />

Nematicides are generally divided into Non-fumigants (Table 51) <strong>and</strong> Fumigants<br />

(Table 52).<br />

Mark nematicides you use at work, Contact Croplife Australia for updates of the<br />

including surfactants.<br />

classifications <strong>and</strong> further information<br />

This is a summary guide only, <strong>and</strong> not a<br />

www.croplife.org.au<br />

substitute for reading a currently registered<br />

label, MSDS <strong>and</strong> obtaining up-to-date advice Checkcurrent registration status www.apvma.gov.au/<br />

Insecticides are classified by Croplife Infopest can be purchased www.dpi.qld.gov.au/<br />

Australia into mode of action groups.<br />

Table 51. Non-fumigant. Insecticides/Nematicides (2009) examples only<br />

<br />

<br />

Non-fumigant pre- <strong>and</strong> post-plant contact soil nematicides move through the soil as liquids in<br />

soil solutions <strong>and</strong> act as contact poisons. They may be applied as liquids or granules to:<br />

– The soil in b<strong>and</strong>s, in planting furrows or broadcast.<br />

– Established commercial turf <strong>and</strong> other plants as a drench.<br />

– Seed <strong>and</strong> bare plant roots as a dip.<br />

– Usually applied at planting time or when nematode populations are increasing early in the season.<br />

Non-fumigant nematicides are not for home garden use.<br />

MAIN MODE OF<br />

ACTION GROUP<br />

<strong>and</strong><br />

Primary Site of<br />

Action<br />

1<br />

Acetylcholinester<br />

ase inhibitors<br />

INSECTICIDES<br />

CHEMICAL<br />

SUBGROUP or<br />

Exemplifying<br />

Active<br />

constituent<br />

1A<br />

Carbamates<br />

1B<br />

Organo<br />

Phosphates<br />

THE PRODUCT<br />

Trade name<br />

Active constituent<br />

FURADAN<br />

carbofuran<br />

DANGEROUS POISON<br />

ELECTRA, NUDRIN,<br />

LANNATE, VARIOUS<br />

methomyl<br />

DANGEROUS POISON<br />

TEMIK<br />

aldicarb<br />

DANGEROUS POISON<br />

VYDATE<br />

oxamyl<br />

DANGEROUS POISON<br />

RUGBY<br />

cadusafos<br />

DANGEROUS POISON<br />

COUNTER, HUNTER<br />

terbufos<br />

DANGEROUS POISON<br />

FENAMIPHOS,<br />

NEMACUR,<br />

VARIOUS<br />

fenamiphos<br />

DANGEROUS POISON<br />

<strong>and</strong> POISON<br />

Mode of action<br />

Systemic<br />

Contact action<br />

Stomach action<br />

Systemic<br />

Contact action<br />

Stomach action<br />

ovicide, larvicide<br />

Systemic<br />

absorbed by root<br />

system, upwards<br />

movement only<br />

in the plant<br />

Systemic<br />

Contact action<br />

moves up <strong>and</strong><br />

down in plant<br />

Systemic<br />

Contact action<br />

Contact action<br />

Stomach action<br />

Systemic<br />

Systemic<br />

Contact action<br />

often only preplant<br />

application<br />

SOME USES<br />

Read label, obtain advice from company<br />

CROPS, SITES<br />

TREATED<br />

Rice,<br />

sugarcane,<br />

tobacco,<br />

wheat, barley<br />

Non-crop,<br />

sheds, certain<br />

field crops,<br />

pasture, cotton,<br />

fruit, vegetables<br />

Citrus fruit,<br />

cotton,<br />

sugarcane<br />

Bananas,<br />

capsicum,<br />

tomatoes<br />

Banana, ginger,<br />

sugarcane,<br />

tobacco, tomato<br />

Banana,<br />

wheat, barley,<br />

maize, peanut,<br />

sorghum,<br />

sunflower,<br />

sweetcorn<br />

Certain fruit,<br />

field crops,<br />

vegetables,<br />

ornamentals,<br />

mushrooms,<br />

turf<br />

DISEASES, PESTS, WEEDS<br />

CONTROLLED/SUPPRESSED<br />

Nematicide<br />

cereal cyst, other nematodes<br />

Insecticide<br />

leaf hoppers, white rice stem<br />

borers, Helicoverpa<br />

Nematicide<br />

slight activity only not on labels<br />

Insecticide<br />

wide range of insects<br />

Nematicide<br />

burrowing, citrus, root knot, root<br />

lesion <strong>and</strong> spiral nematodes<br />

Insecticide<br />

aphids, scale, mealybugs, citrus<br />

leafminer, mites, thrips, mirids,<br />

wireworm<br />

Nematicide<br />

burrowing, root knot <strong>and</strong> spiral<br />

nematodes<br />

Insecticide<br />

banana weevil borer larvae<br />

Soil nematicide<br />

burrowing, root knot, root lesion,<br />

spiral <strong>and</strong> stubby root nematodes<br />

Soil insecticide<br />

banana weevil borer, canegrubs<br />

Soil nematicide<br />

burrowing, cereal cyst nematodes<br />

Soil insecticide<br />

banana weevil borer, white grubs,<br />

whitefringed weevil, wireworms<br />

Soil nematicide<br />

soil-borne plant parasitic<br />

nematodes, foliar nematode<br />

Insecticide<br />

soil insects, eg African black<br />

beetle larvae, sucking insects<br />

266 Nematode diseases

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