Cabbage intercropped with chilli significantly reduced diamondback moth larval populations in both seasons.

Solanum lycopersicum · pest · Brassica oleracea (wild cabbage)Positive and negative results

2 papers in the same direction as this claim · 1 in the opposite direction

1. no effect
   Intercropping with tomato did not reduce eggs on cabbage.

   Manipulating the Attractiveness and Suitability of Hosts for Diamondback Moth (Lepidoptera: Plutellidae) · 2005

   Opposite direction

2. positive
   Intercropping cabbage with tomato reduced eggs per cabbage plant by 68.80%.

   Repellent effect of non-host vegetables and their extracts on Pieris rapae L. · 2010

   Same direction

3. positive
   Cabbage with tomato intercrop had the lowest seasonal mean larval population of diamondback moth, 1.20 larvae per plant.

   Impact of intercrops for the management of diamondback moth (Plutella xylostella L.) and yield on cabbage · 2025 · compared with sole cabbage

   Same direction

Brassica oleracea var. capitata · pest · Brassica oleracea (wild cabbage)Positive and negative results

12 papers in the same direction as this claim · 2 in the opposite direction · 1 reporting no difference from an alternative

1. negative
   Sole cabbage plots supported a higher number of diamondback moth larvae than cabbage intercropped with onion.

   7. Effect of intercropping and soil amendment on the population dynamics of major pests and natural enemies of white cabbage · 2020 · compared with cabbage intercropped with onion

   Opposite direction

2. negative
   Females reared on cabbage laid the most fertile eggs.

   Influence of host plant on the development and annual generations of the cabbage looper Trichoplusia ni (Hb.) in Egypt · 1988

   Opposite direction

3. no effect
   The net reproductive rate of S. litura on cabbage (1893.1 offspring) was not significantly different from that on taro (1361.0 offspring).

   Demography and Consumption ofSpodoptera litura(Lepidoptera: Noctuidae) Reared on Cabbage and Taro · 2015 · compared with taro

   No difference from an alternative

4. positive
   First-instar cabbage looper larvae feeding on cabbage deterred adult moth oviposition in laboratory assays.

   An Oviposition Deterrent Associated with Frass from Feeding Larvae of the Cabbage Looper,Trichoplusia ni(Lepidoptera: Noctuidae) · 1980

   Same direction

5. positive
   Cabbage intercropping significantly reduced leaf damage relative to sole cabbage.

   Onion (Allium cepa) and garlic (Allium sativum) as pest control intercrops in cabbage based intercrop systems in Zimbabwe · 2014 · compared with sole cabbage crop

   Same direction

6. positive
   Inexperienced moths preferred cabbage juice sheets without Neemix.

   Experience‐altered oviposition responses to a neem‐based product, Neemix^®, by the diamondback moth, Plutella xylostella · 2005 · compared with cabbage juice only

   Same direction

7. positive
   Presence of tropical basil near cabbage plots significantly reduced insect pest abundance on cabbage compared with no basil.

   Efficacy of basil-cabbage intercropping to control insect pests in Benin, West Africa · 2017 · compared with control (no basil in the cabbage area)

   Same direction

8. positive
   Intercropping cabbage with garlic reduced the population density of Lipaphis erqsimi by 35.6% compared with cabbage monoculture.

   Effects of intercropping of cabbage and garlic on major pests and arthropod community in spring cabbage fields. · 2013 · compared with cabbage monoculture field

   Same direction

7 papers more in this group

intercropping · pest · Brassica oleracea (wild cabbage)Positive and negative results

14 papers in the same direction as this claim · 3 in the opposite direction

1. no effect
   Intercropping did not significantly change lepidopterous larval numbers in cabbage.

   Intercropping Cabbage and Indian Mustard for Potential Control of Lepidopterous and Other Insects · 1999

   Opposite direction

2. no effect
   Sweet alyssum intercropping did not increase adult hoverflies in Japan.

   Effects of wheat undersowing and sweet alyssum intercropping on aphid and flea beetle infestation in white cabbage in Germany and Japan · 2023

   Opposite direction

3. no effect
   Cabbage-tomato intercrops did not differ significantly from sole cabbage in pest populations.

   TOMATO AS AN INTERCROPPED PLANT ON THE PESTS AND NATURAL ENEMIES OFTHE PESTS OF CABBAGE (BRASSICA OLERACEA) · 2011 · compared with control cabbage

   Opposite direction

4. positive
   Cabbage grown alone had higher leafwebber larval populations than cabbage intercropped with mustard.

   Indian mustard as a trap crop for management of major lepidopterous pests on cabbage · 1991 · compared with cabbage grown alone

   Same direction

5. positive
   Parsley shelter increased natural enemy abundance without alternative food.

   Intercropping hampers the nocturnal biological control of aphids · 2017

   Same direction

6. positive
   Cabbage intercropping significantly reduced leaf damage relative to sole cabbage.

   Onion (Allium cepa) and garlic (Allium sativum) as pest control intercrops in cabbage based intercrop systems in Zimbabwe · 2014 · compared with sole cabbage crop

   Same direction

7. positive
   Pest density was lower with intercropping than monoculture.

   Biological pest control by enhancing populations of natural enemies in organic farming systems · 2011 · compared with monocultured plots

   Same direction

8. positive
   Pest insect density was higher in monocultured than intercropped cabbage plots.

   Relay-intercropping into tomato decreases cabbage pest incidence · 2010 · compared with mono-cultured plots

   Same direction

9 papers more in this group